From j.m.maurer@student.utwente.nl Thu, 03 Aug 2000 19:00:34 +0200
Date: Thu, 03 Aug 2000 19:00:34 +0200
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Creative Webcam II (Parallel) problems
Hi All!
I've got some problems getting the webcam working...
This is the output of dmesg [running 2.4.0-test4]:
0x378: FIFO is 16 bytes
0x378: writeIntrThreshold is 8
0x378: readIntrThreshold is 8
0x378: PWord is 8 bits
0x378: Interrupts are ISA-Pulses
0x378: ECP port cfgA=0x10 cfgB=0x4b
0x378: ECP settings irq=7 dma=3
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,ECP]
parport0: irq 7 detected
parport0: cpp_daisy: aa5500ff(10)
parport0: assign_addrs: aa5500ff(10)
parport0: Multimedia device, VLSI Vision Ltd DUAL Camera
Linux video capture interface: v1.00
V4L-Driver for Vision CPiA based cameras v1.1.0
Parallel port driver for Vision CPiA based cameras v1.1.0
It detects the webcam, but not a single app. seems to work [they say
that
I've no /dev/video0 etc. while they are certainly there]
I've no problems using the webcam under windows :(
Can anyone give me a hint?
Thanx in advance,
Marc
From cloud@chool.com Thu, 3 Aug 2000 12:03:58 -0500 (CDT)
Date: Thu, 3 Aug 2000 12:03:58 -0500 (CDT)
From: Sam Reynolds cloud@chool.com
Subject: [cpia] Creative Webcam II (Parallel) problems
I have the same problem and am very interested in anything you find out :)
-Sam Reynolds
On Thu, 3 Aug 2000, j.m.maurer wrote:
> Hi All!
>
> I've got some problems getting the webcam working...
> This is the output of dmesg [running 2.4.0-test4]:
>
> 0x378: FIFO is 16 bytes
> 0x378: writeIntrThreshold is 8
> 0x378: readIntrThreshold is 8
> 0x378: PWord is 8 bits
> 0x378: Interrupts are ISA-Pulses
> 0x378: ECP port cfgA=0x10 cfgB=0x4b
> 0x378: ECP settings irq=7 dma=3
> parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,ECP]
> parport0: irq 7 detected
> parport0: cpp_daisy: aa5500ff(10)
> parport0: assign_addrs: aa5500ff(10)
> parport0: Multimedia device, VLSI Vision Ltd DUAL Camera
> Linux video capture interface: v1.00
> V4L-Driver for Vision CPiA based cameras v1.1.0
> Parallel port driver for Vision CPiA based cameras v1.1.0
>
> It detects the webcam, but not a single app. seems to work [they say
> that
> I've no /dev/video0 etc. while they are certainly there]
>
> I've no problems using the webcam under windows :(
>
> Can anyone give me a hint?
>
> Thanx in advance,
> Marc
>
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
>
From sebastian@wastl-online.de Thu, 3 Aug 2000 23:35:17 +0200
Date: Thu, 3 Aug 2000 23:35:17 +0200
From: Sebastian Wastl sebastian@wastl-online.de
Subject: [cpia] (no subject)
This is a multi-part message in MIME format.
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Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
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charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
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From tdat@yahoo.com Thu, 3 Aug 2000 14:37:32 -0700 (PDT)
Date: Thu, 3 Aug 2000 14:37:32 -0700 (PDT)
From: Sang Y. Yum tdat@yahoo.com
Subject: [cpia] Tunerless Cheetah Video Deamon
Could you mail me a copy if you have it? The file Eric sent me
was corrupted for some reason.
Thanks.
Sang
=====
Sang Y. Yum http://www.yumnet.dyndns.org/~sang
San Diego, CA mailto:tdat@yahoo.com
__________________________________________________
Do You Yahoo!?
Kick off your party with Yahoo! Invites.
http://invites.yahoo.com/
From j.m.maurer@student.utwente.nl Fri, 04 Aug 2000 16:50:07 +0200
Date: Fri, 04 Aug 2000 16:50:07 +0200
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Creative Webcam II (Parallel) problems
doing a insmod parport_probe did the trick!
Thanx! It works even better than under windows [more fps]
Marc
"j.m.maurer" wrote:
> Hi All!
>
> I've got some problems getting the webcam working...
> This is the output of dmesg [running 2.4.0-test4]:
>
> 0x378: FIFO is 16 bytes
> 0x378: writeIntrThreshold is 8
> 0x378: readIntrThreshold is 8
> 0x378: PWord is 8 bits
> 0x378: Interrupts are ISA-Pulses
> 0x378: ECP port cfgA=0x10 cfgB=0x4b
> 0x378: ECP settings irq=7 dma=3
> parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,ECP]
> parport0: irq 7 detected
> parport0: cpp_daisy: aa5500ff(10)
> parport0: assign_addrs: aa5500ff(10)
> parport0: Multimedia device, VLSI Vision Ltd DUAL Camera
> Linux video capture interface: v1.00
> V4L-Driver for Vision CPiA based cameras v1.1.0
> Parallel port driver for Vision CPiA based cameras v1.1.0
>
> It detects the webcam, but not a single app. seems to work [they say
> that
> I've no /dev/video0 etc. while they are certainly there]
>
> I've no problems using the webcam under windows :(
>
> Can anyone give me a hint?
>
> Thanx in advance,
> Marc
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
From j.m.maurer@student.utwente.nl Fri, 04 Aug 2000 21:43:40 +0200
Date: Fri, 04 Aug 2000 21:43:40 +0200
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Old pc :)
I wanted to use a creative webcam 2 on a rather old pc [P120],
but parport_probe outputs that parport0 is not 1284 compatible, and
thus cpia_pp also fails to load....
parport0 is ECP compatible... Is there any way that should get it to
work?
Thanx in advance,
Marc
From fabiano.reis@uol.com.br Fri, 04 Aug 2000 17:11:14 -0300
Date: Fri, 04 Aug 2000 17:11:14 -0300
From: Fabiano Reis fabiano.reis@uol.com.br
Subject: [cpia] Old pc :)
I have the same problem.
I waiting response from www.unicore.com website... (they sell BIOS
Upgrade.)
I think you have to upgrade your bios to make parport compatible with
1284 specs.
But...
"j.m.maurer" wrote:
> I wanted to use a creative webcam 2 on a rather old pc [P120],
> but parport_probe outputs that parport0 is not 1284 compatible, and
> thus cpia_pp also fails to load....
>
> parport0 is ECP compatible... Is there any way that should get it to
> work?
>
> Thanx in advance,
> Marc
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
From sbertin@mindspring.com Fri, 4 Aug 2000 18:22:52 -0400 (EDT)
Date: Fri, 4 Aug 2000 18:22:52 -0400 (EDT)
From: sbertin@mindspring.com sbertin@mindspring.com
Subject: [cpia] Old pc :)
On 4 Aug, j.m.maurer wrote:
> I wanted to use a creative webcam 2 on a rather old pc [P120],
> but parport_probe outputs that parport0 is not 1284 compatible, and
> thus cpia_pp also fails to load....
>
> parport0 is ECP compatible... Is there any way that should get it to
> work?
You can try "insmod cpia_pp.o parport=0" to force it to try parport0.
Scott J. Bertin
sbertin@mindspring.com
From tobias@ing.ens.uabc.mx Fri, 4 Aug 2000 19:05:41 -0700
Date: Fri, 4 Aug 2000 19:05:41 -0700
From: Tobias Gogolin tobias@ing.ens.uabc.mx
Subject: [cpia] Two CPIA Creative Video Blaster WebCamII 's
I have one working jhust added another Parralel port @278
should i set it to a different IRQ ? DMA ?
How do I tell my system ?
Any hints appreciated !
cheers
Tobias
From zioivy@libero.it Sat, 05 Aug 2000 15:07:09 -0700
Date: Sat, 05 Aug 2000 15:07:09 -0700
From: zioivy zioivy@libero.it
Subject: [cpia] Informations
I'd like to know phisical informormations about the webcamII like focal
length, CCD characteristics like pixels/mm etc.
Can someone help me?
Thanks.
P.S. : I have two cameras and all goes well with kernel 2.2.15 but under
2.3.99pre9 when I remove modules the video1 device is not removed. If I
insert again modules in the proc filesystem appears video0 and video2,
then video0 and video3 and so on. Solutions?
P.P.S. : I'd like to introduce a warping function that rectifies the
images in the cpia drivers. It's useful for someone? I made a program
that does this after grabbing the image and it's very fast.
From cloud@chool.com Sat, 5 Aug 2000 11:20:34 -0500 (CDT)
Date: Sat, 5 Aug 2000 11:20:34 -0500 (CDT)
From: Sam Reynolds cloud@chool.com
Subject: [cpia] Creative Webcam II (Parallel) problems
I still have been unable to get mine working. I am still getting the
/dev/video: No such Device error. I have parport_probe in my kernel and
have tried with kernel 2.2.15 and 2.4.0-test5 and cpia 1.0 and 1.1. If
you could give any insight on how you installed it, it would be greatly
appreciated.
Thank you,
Sam Reynolds
On Fri, 4 Aug 2000, j.m.maurer wrote:
> doing a insmod parport_probe did the trick!
>
> Thanx! It works even better than under windows [more fps]
>
> Marc
>
>
>
> "j.m.maurer" wrote:
>
> > Hi All!
> >
> > I've got some problems getting the webcam working...
> > This is the output of dmesg [running 2.4.0-test4]:
> >
> > 0x378: FIFO is 16 bytes
> > 0x378: writeIntrThreshold is 8
> > 0x378: readIntrThreshold is 8
> > 0x378: PWord is 8 bits
> > 0x378: Interrupts are ISA-Pulses
> > 0x378: ECP port cfgA=0x10 cfgB=0x4b
> > 0x378: ECP settings irq=7 dma=3
> > parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,ECP]
> > parport0: irq 7 detected
> > parport0: cpp_daisy: aa5500ff(10)
> > parport0: assign_addrs: aa5500ff(10)
> > parport0: Multimedia device, VLSI Vision Ltd DUAL Camera
> > Linux video capture interface: v1.00
> > V4L-Driver for Vision CPiA based cameras v1.1.0
> > Parallel port driver for Vision CPiA based cameras v1.1.0
> >
> > It detects the webcam, but not a single app. seems to work [they say
> > that
> > I've no /dev/video0 etc. while they are certainly there]
> >
> > I've no problems using the webcam under windows :(
> >
> > Can anyone give me a hint?
> >
> > Thanx in advance,
> > Marc
> >
> > _______________________________________________
> > cpia mailing list - cpia@risc.uni-linz.ac.at
> > http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
>
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
>
From j.m.maurer@student.utwente.nl Mon, 07 Aug 2000 12:41:00 +0200
Date: Mon, 07 Aug 2000 12:41:00 +0200
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Creative Webcam II (Parallel) problems
First I set my parport to ECP mode in my Bios. Then I used kernel 2.2.16
with Video for Linux compiled as a module, which is videodev.o I also
compiled parport.o and parport_pc.o as a module. Finally under Plug &
Play I
also compiled parport_probe as a module.
After booting the kernel I did the folowing:
insmod parport
insmod parport_pc
insmod parport_probe
insmod parport_probe should detect a webcam, which you can see using
dmesg.
I then downloaded the latest CPIA drivers from webcam.sourceforge.net
and
installed then using:
insmod cpia
insmod cpia_pp
The insmod cpia_pp then reported "1 cameras found" and all worked fine
(try
the client that comes with the cpia package). Be sure that there are no
errors reported in dmesg, because on a P120 it also reported "1 cameras
found" but dmesg showed some errors and it still didn't work, since the
parport is not IEEE1284 capable...
Hope this helps :)
Marc
From cloud@chool.com Mon, 7 Aug 2000 09:34:53 -0500 (CDT)
Date: Mon, 7 Aug 2000 09:34:53 -0500 (CDT)
From: Sam Reynolds cloud@chool.com
Subject: [cpia] Creative Webcam II (Parallel) problems
Thanks i'll try it!
-Sam Reynolds
On Mon, 7 Aug 2000, j.m.maurer wrote:
> First I set my parport to ECP mode in my Bios. Then I used kernel 2.2.16
>
> with Video for Linux compiled as a module, which is videodev.o I also
> compiled parport.o and parport_pc.o as a module. Finally under Plug &
> Play I
> also compiled parport_probe as a module.
>
> After booting the kernel I did the folowing:
>
> insmod parport
> insmod parport_pc
> insmod parport_probe
>
> insmod parport_probe should detect a webcam, which you can see using
> dmesg.
> I then downloaded the latest CPIA drivers from webcam.sourceforge.net
> and
> installed then using:
>
> insmod cpia
> insmod cpia_pp
>
> The insmod cpia_pp then reported "1 cameras found" and all worked fine
> (try
> the client that comes with the cpia package). Be sure that there are no
> errors reported in dmesg, because on a P120 it also reported "1 cameras
> found" but dmesg showed some errors and it still didn't work, since the
> parport is not IEEE1284 capable...
>
> Hope this helps :)
> Marc
>
>
>
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
>
From cloud@chool.com Mon, 7 Aug 2000 11:16:32 -0500 (CDT)
Date: Mon, 7 Aug 2000 11:16:32 -0500 (CDT)
From: Sam Reynolds cloud@chool.com
Subject: [cpia] Creative Webcam II (Parallel) problems
Well i did this stuff and made some progress. Everything looks great
except when i try to run gqcam. The first time I run it it Seg
Faults. From then on it says /dev/video: device or resource
busy. Although it does not appear in lsof. The parport_probe found the
camera and the cpia_pp said "1 camera found". I have permissions to
/dev/video0 which is what /dev/video points at. Any ideas?
-Sam Reynolds
On Mon, 7 Aug 2000, j.m.maurer wrote:
> First I set my parport to ECP mode in my Bios. Then I used kernel 2.2.16
>
> with Video for Linux compiled as a module, which is videodev.o I also
> compiled parport.o and parport_pc.o as a module. Finally under Plug &
> Play I
> also compiled parport_probe as a module.
>
> After booting the kernel I did the folowing:
>
> insmod parport
> insmod parport_pc
> insmod parport_probe
>
> insmod parport_probe should detect a webcam, which you can see using
> dmesg.
> I then downloaded the latest CPIA drivers from webcam.sourceforge.net
> and
> installed then using:
>
> insmod cpia
> insmod cpia_pp
>
> The insmod cpia_pp then reported "1 cameras found" and all worked fine
> (try
> the client that comes with the cpia package). Be sure that there are no
> errors reported in dmesg, because on a P120 it also reported "1 cameras
> found" but dmesg showed some errors and it still didn't work, since the
> parport is not IEEE1284 capable...
>
> Hope this helps :)
> Marc
>
>
>
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
>
From j.m.maurer@student.utwente.nl Mon, 07 Aug 2000 19:16:34 +0200
Date: Mon, 07 Aug 2000 19:16:34 +0200
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Creative Webcam II (Parallel) problems
Hmmm I had this problem also once... don't know what I did... Doesn't
rebooting and re-attaching help (if you didn't already tried that 1000
times)?
I remember I tried xawtv and had no problems, but gqcam had some troubles here
also.
-Marc
Sam Reynolds wrote:
> Well i did this stuff and made some progress. Everything looks great
> except when i try to run gqcam. The first time I run it it Seg
> Faults. From then on it says /dev/video: device or resource
> busy. Although it does not appear in lsof. The parport_probe found the
> camera and the cpia_pp said "1 camera found". I have permissions to
> /dev/video0 which is what /dev/video points at. Any ideas?
> -Sam Reynolds
>
> On Mon, 7 Aug 2000, j.m.maurer wrote:
>
> > First I set my parport to ECP mode in my Bios. Then I used kernel 2.2.16
> >
> > with Video for Linux compiled as a module, which is videodev.o I also
> > compiled parport.o and parport_pc.o as a module. Finally under Plug &
> > Play I
> > also compiled parport_probe as a module.
> >
> > After booting the kernel I did the folowing:
> >
> > insmod parport
> > insmod parport_pc
> > insmod parport_probe
> >
> > insmod parport_probe should detect a webcam, which you can see using
> > dmesg.
> > I then downloaded the latest CPIA drivers from webcam.sourceforge.net
> > and
> > installed then using:
> >
> > insmod cpia
> > insmod cpia_pp
> >
> > The insmod cpia_pp then reported "1 cameras found" and all worked fine
> > (try
> > the client that comes with the cpia package). Be sure that there are no
> > errors reported in dmesg, because on a P120 it also reported "1 cameras
> > found" but dmesg showed some errors and it still didn't work, since the
> > parport is not IEEE1284 capable...
> >
> > Hope this helps :)
> > Marc
> >
> >
> >
> >
> > _______________________________________________
> > cpia mailing list - cpia@risc.uni-linz.ac.at
> > http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
> >
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
From robert@work.vc-graz.ac.at Tue, 8 Aug 2000 15:01:51 +0200 (CEST)
Date: Tue, 8 Aug 2000 15:01:51 +0200 (CEST)
From: Robert Ladstaetter robert@work.vc-graz.ac.at
Subject: [cpia] want to buy USB Camera ?
hello all,
I want to buy a camera which supports following features:
*) streaming video/audio (with logging of streams/time/userbasis)
*) via USB? this is not a necessity - I'm not so much into the whole
issue, the important thing is that streaming is possible
*) running under linux (somehow)
*) pricing: ranging from $0 - $300 (dollar) ??;
This is a non - technical request, but I thought that the persons who are
subscribed have the technical background to give the right tips,
any help greatly appreciated,
robert
--
mfG
Ladstaetter Robert mailto:ladi@sbox.tu-graz.ac.at
From jack_diederich@email.com Tue, 8 Aug 2000 11:51:25 -0400 (EDT)
Date: Tue, 8 Aug 2000 11:51:25 -0400 (EDT)
From: Jack Diederich jack_diederich@email.com
Subject: [cpia] want to buy USB Camera ?
Any of the cameras listed here http://webcam.sourceforge.net/
will work with USB & linux. They are in the $50 +- $10 price range (at least the EZonics which I bought) and are decent webcams.
As for software, there are a whole bunch of apps for linux. Do a search on freshmeat.net, or just click here http://freshmeat.net/search.php3?query=cam+stream
The webcam.sourceforge.net link is where you should go to get the latest drivers for cpia based cameras. I haven't tried any other types of cameras on linux (I'm not even sure what other cameras are supported, if any).
-jack
------Original Message------
From: Robert Ladstaetter
To: cpia@risc.uni-linz.ac.at
Sent: August 8, 2000 1:01:51 PM GMT
Subject: [cpia] want to buy USB Camera ?
hello all,
I want to buy a camera which supports following features:
*) streaming video/audio (with logging of streams/time/userbasis)
*) via USB? this is not a necessity - I'm not so much into the whole
issue, the important thing is that streaming is possible
*) running under linux (somehow)
*) pricing: ranging from $0 - $300 (dollar) ??;
This is a non - technical request, but I thought that the persons who are
subscribed have the technical background to give the right tips,
any help greatly appreciated,
robert
--
mfG
Ladstaetter Robert mailto:ladi@sbox.tu-graz.ac.at
_______________________________________________
cpia mailing list - cpia@risc.uni-linz.ac.at
http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
-----------------------------------------------
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From Peter_Pregler@email.com Wed, 9 Aug 2000 13:28:46 +0200
Date: Wed, 9 Aug 2000 13:28:46 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] want to buy USB Camera ?
On Tue, Aug 08, 2000 at 11:51:25AM -0400, Jack Diederich wrote:
>
> The webcam.sourceforge.net link is where you should go to get the
> latest drivers for cpia based cameras. I haven't tried any other types
> of cameras on linux (I'm not even sure what other cameras are
> supported, if any).
The cpia-based webcams have one drawback over the other cameras
available these days. They are 100K pixel cameras, i.e. the highest
true resolution is CIF which is 352x280. About all other cameras on the
market (afaik there are linux-drivers for ov511 based cameras such as
the webcam III, or even philips vesta, ...) seem to do vga resolution
(640x480). I have no idea how good/stable the linux-drivers for those
cameras are. But the support form the vendor (i.e. open specifications
and windos-source code) is definitly not that good as it is for the
cpia chip. If you have to use a 2.2 kernel and/or do not need the high
resolution a cpia-based camera should be the best option. And USB is
IMHO definitly the better choice these days.
-Peter
--
Even the thought that a ship was waiting to take him back to Earth
did not wipe out the sense of loss he felt at that moment.
-------------------------------
Email: Peter_Pregler@email.com
From Peter_Pregler@email.com Wed, 9 Aug 2000 13:33:49 +0200
Date: Wed, 9 Aug 2000 13:33:49 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] Informations
On Sat, Aug 05, 2000 at 03:07:09PM -0700, zioivy wrote:
> I'd like to know phisical informormations about the webcamII like focal
> length, CCD characteristics like pixels/mm etc.
> Can someone help me?
As for CCD-information you should find something on data-sheets of the
cpia-chip available on the STM webpage (www.st.com). As for
lens-information I think this is specific to the actual camera model
you bought. That should be the thing the cameras from the various
vendors differ. So you would have to contact the vendor of your camera.
> P.S. : I have two cameras and all goes well with kernel 2.2.15 but under
> 2.3.99pre9 when I remove modules the video1 device is not removed. If I
> insert again modules in the proc filesystem appears video0 and video2,
> then video0 and video3 and so on. Solutions?
Bug. Which driver version is this?
> P.P.S. : I'd like to introduce a warping function that rectifies the
> images in the cpia drivers. It's useful for someone? I made a program
> that does this after grabbing the image and it's very fast.
This is userland stuff. I don't really know where the linux-community
gathers to discuss such stuff. :)
-Peter
--
Even the thought that a ship was waiting to take him back to Earth
did not wipe out the sense of loss he felt at that moment.
-------------------------------
Email: Peter_Pregler@email.com
From tgogolin@web.de Wed, 9 Aug 2000 17:49:51 -0700
Date: Wed, 9 Aug 2000 17:49:51 -0700
From: Tobias Gogolin tgogolin@web.de
Subject: [cpia] Informations
Actually I am interested in the warping or better un~
Its some form of Cushion correction ?
Specificaly I am planning to set up a webcam that scans a view
and to create the wide scan row (roll) I figured I was only going to be able
to use a small stripe in the middle of the images to paste together an image
So I am curious what you discovered about the optical effects of mapping
this infinitly round world to a flat little chip of silicon ?
Have you considered making your findings open source and put it all into an
instantly published directory for now ?
thanks and cheers
Tobias
----- Original Message -----
From: "zioivy"
To: "Cpia"
Sent: Saturday, August 05, 2000 15:07
Subject: [cpia] Informations
> I'd like to know phisical informormations about the webcamII like focal
> length, CCD characteristics like pixels/mm etc.
> Can someone help me?
> Thanks.
> P.S. : I have two cameras and all goes well with kernel 2.2.15 but under
> 2.3.99pre9 when I remove modules the video1 device is not removed. If I
> insert again modules in the proc filesystem appears video0 and video2,
> then video0 and video3 and so on. Solutions?
> P.P.S. : I'd like to introduce a warping function that rectifies the
> images in the cpia drivers. It's useful for someone? I made a program
> that does this after grabbing the image and it's very fast.
>
> _______________________________________________
> cpia mailing list - cpia@risc.uni-linz.ac.at
> http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
From tgogolin@web.de Wed, 9 Aug 2000 14:38:24 -0700
Date: Wed, 9 Aug 2000 14:38:24 -0700
From: Tobias Gogolin tgogolin@web.de
Subject: [cpia] want to buy USB Camera ?
lets not forget to mention the availability of drivers for 'Frame Grabers'
The inherent advantages are:
- not limited to the max databandwith of USB or Printerport
- possibility to avoid these motion ghosts caused by the camera having to
precompress (or doing that imperfectly) and only tranfer changes greater
than something
- full random access the the scanfield
- video signals can be extended longer than 5 meters (usb Limit)
- many different devices deliver video standard signals
- usualy higher framerates
Disadvantage:
- needs to be installed inside the computer
- analog signal tranfer ?
Anyhow I dont have a framegraber yet
I'd like to find out more about those myself - would be curious to know if
you find something good ...
I know there is a webcam :(not too famous resolution): that offers wireless
transfer (think using buetooth) up to 15 m from X10.com
with video standard signal
Only digital technology that can really compete with the quality achivable
with this is maybe firewire
Havent heard about pure firewire webcams yet
And its linux support is at best new too...
cheers
Tobias
From jack_diederich@email.com Thu, 10 Aug 2000 13:00:07 -0400 (EDT)
Date: Thu, 10 Aug 2000 13:00:07 -0400 (EDT)
From: Jack Diederich jack_diederich@email.com
Subject: [cpia] Video for linux two?
Umm,
Does anyone know what happened to the Video for Linux Two page?
The site seems to be gone, although the homepage is still cached in google.
-jack
-----------------------------------------------
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Reserve your name now at http://www.email.com
From muaddib@erf.net Thu, 10 Aug 2000 12:04:54 -0500
Date: Thu, 10 Aug 2000 12:04:54 -0500
From: James E Jurach Jr. muaddib@erf.net
Subject: [cpia] Re: CPIA / gqcam / sane / command-line utilities..
Cory,
> > 1) Is there a forum or community of CPIA users that you know of who are
>
> http://webcam.sourceforge.net/
> There is a fair amount of information, as well as a mailing list ...
I've added myself to this list.
> > My intention for purchasing the zoom cam was ultimately to provide a
> > webcam ... and there doesn't appear to be any command-line interface or
> > timed automation features to produce such a series of images..
>
> try running
> gqcam --help
This brings up the gui, and provides no help. I'm working with the
cpia-1.1.tgz released on 2000-Jul-13 available from sourceforge. Do you
know of any more recent releases, or perhaps a CVS repository I can play
with?
> In general, if something says it supports Video4Linux, it should work
> with any of the drivers.
This is actually a point of confusion for me. There is a v4l and a v4l2,
and very little documentation that relates the 2 projects together (or
perhaps of the 20 or so i've followed, I didn't follow the right one).
Do you have any plans of merging the gqcam-cpia work back into the gqcam
project, or if there will eventually be a merge of the two projects
(perhaps based on SANE backends?). I do not have enough tuits even to know
whether to chase geese down the v4l path or the v4l2 path ..
Thanks for your response.
James
From Peter_Pregler@email.com Thu, 10 Aug 2000 22:47:00 +0200
Date: Thu, 10 Aug 2000 22:47:00 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] Re: CPIA / gqcam / sane / command-line utilities..
On Thu, Aug 10, 2000 at 12:04:54PM -0500, James E Jurach Jr. wrote:
> This brings up the gui, and provides no help. I'm working with the
> cpia-1.1.tgz released on 2000-Jul-13 available from sourceforge. Do you
> know of any more recent releases, or perhaps a CVS repository I can play
> with?
The client shipped with the driver is a very ancient port of gqcam (see
the README_FIRST file). It is just there for your convenience to have
_any_ application to test the camera. Get the latest version of gqcam.
You should be able to find it via freshmeat. I don't have the url at
hand.
> This is actually a point of confusion for me. There is a v4l and a v4l2,
> and very little documentation that relates the 2 projects together (or
> perhaps of the 20 or so i've followed, I didn't follow the right
> one).
What is now in about any kernel you get is v4l. AFAIK for kernel 2.5
Alan will somehow merge in v4l2 API. If you want to use any
v4l2-application right now you have to get an extra kernel-patch
directly from the v4l2-guys. But about any software I do know of does
use the normal v4l.
> Do you have any plans of merging the gqcam-cpia work back into the gqcam
> project, or if there will eventually be a merge of the two projects
> (perhaps based on SANE backends?).
That is already done. Get the current gqcam from their official site
(whereever that is ;). As for SANE, if it supports v4l it should work.
Otherwise write a driver.
> I do not have enough tuits even to know
> whether to chase geese down the v4l path or the v4l2 path ..
Simply forget about v4l2 right now.
-Peter
--
Even the thought that a ship was waiting to take him back to Earth
did not wipe out the sense of loss he felt at that moment.
-------------------------------
Email: Peter_Pregler@email.com
From cluenin1@bigred.unl.edu Thu, 10 Aug 2000 16:40:05 -0500 (CDT)
Date: Thu, 10 Aug 2000 16:40:05 -0500 (CDT)
From: Cory Lueninghoener cluenin1@bigred.unl.edu
Subject: [cpia] Re: CPIA / gqcam / sane / command-line utilities..
Ah, yes, I had forgotten about the extra gqcam stuff that is packaged with
the cpia driver. A much newer version of gqcam is availiable at:
http://cse.unl.edu/~cluening/gqcam
It should have a whole lot of extra features and should, in general, be
better.
Peter, you might want to mention the gqcam web page and the fact that a
newer version exists in the cpia documentation if it isn't there
already...
On Thu, 10 Aug 2000, Peter Pregler wrote:
> On Thu, Aug 10, 2000 at 12:04:54PM -0500, James E Jurach Jr. wrote:
> > This brings up the gui, and provides no help. I'm working with the
> > cpia-1.1.tgz released on 2000-Jul-13 available from sourceforge. Do you
> > know of any more recent releases, or perhaps a CVS repository I can play
> > with?
>
> The client shipped with the driver is a very ancient port of gqcam (see
> the README_FIRST file). It is just there for your convenience to have
> _any_ application to test the camera. Get the latest version of gqcam.
> You should be able to find it via freshmeat. I don't have the url at
> hand.
>
> > This is actually a point of confusion for me. There is a v4l and a v4l2,
> > and very little documentation that relates the 2 projects together (or
> > perhaps of the 20 or so i've followed, I didn't follow the right
> > one).
>
> What is now in about any kernel you get is v4l. AFAIK for kernel 2.5
> Alan will somehow merge in v4l2 API. If you want to use any
> v4l2-application right now you have to get an extra kernel-patch
> directly from the v4l2-guys. But about any software I do know of does
> use the normal v4l.
>
> > Do you have any plans of merging the gqcam-cpia work back into the gqcam
> > project, or if there will eventually be a merge of the two projects
> > (perhaps based on SANE backends?).
>
> That is already done. Get the current gqcam from their official site
> (whereever that is ;). As for SANE, if it supports v4l it should work.
> Otherwise write a driver.
>
> > I do not have enough tuits even to know
> > whether to chase geese down the v4l path or the v4l2 path ..
>
> Simply forget about v4l2 right now.
>
> -Peter
>
> --
> Even the thought that a ship was waiting to take him back to Earth
> did not wipe out the sense of loss he felt at that moment.
> -------------------------------
> Email: Peter_Pregler@email.com
>
Cory Lueninghoener
------------------
cluenin1@bigred.unl.edu http://harold.unl.edu/~cluening
cluening@harold.unl.edu http://www.thepests.com
AIM: cluening ICQ: 9350554
From bas@brijn.nu Fri, 11 Aug 2000 17:28:52 +0200
Date: Fri, 11 Aug 2000 17:28:52 +0200
From: Bas Rijniersce bas@brijn.nu
Subject: [cpia] Tunerless Cheetah Video Deamon
"Sang Y. Yum" wrote:
> Could you mail me a copy if you have it? The file Eric sent me
> was corrupted for some reason.
My Cheetah2 file was also corrupted but all requered files where there.
I compiled it (just returned from a holiday, a bit late I know :) and
only get horizontal stripes (the colour seems OK, so it does get
something from the camera)
I also tried the cvd archive from the website, but that one segfaults
while getting an image.
My HW:
Dual Celeron 333 on Abit BP6
Linux 2.2.16
Bas
> Thanks.
> Sang
----
Bas Rijniersce Phone +31 30 6993131
Laan van Vollenhove 514 Fax +31 341 562511
3706 AA Zeist http://www.brijn.nu
The Netherlands bas@brijn.nu
From emeb@goodnet.com Sat, 12 Aug 2000 22:42:01 -0700
Date: Sat, 12 Aug 2000 22:42:01 -0700
From: Eric Brombaugh emeb@goodnet.com
Subject: [cpia] Barbie Cam App available
Greetings List!
I've been playing with the Mattel Camera for the last few weeks and I
have a simple Linux application available for those who are interested.
Check my website for the tarball:
http://www.goodnet.com/~emeb/mattel_cam.html
The application requires only that you have a free serial port and
libjpeg. It captures a single image, demosaics it, applies black level
correction and unsharp masking and saves the result as a JPEG with
selectable quality. I've had it up and running as a webcam for a few
days now and it seems pretty reliable.
Future improvements include other image formats, scaling and perhaps
improved demosaic techniques.
I'd be interested in any comments, improvements or corrections you may
have to suggest.
Thanks,
Eric
From adam@antispin.org Sun, 13 Aug 2000 12:17:50 +0100
Date: Sun, 13 Aug 2000 12:17:50 +0100
From: Adam Harrison adam@antispin.org
Subject: [cpia] STV0680 co-processor
Hello All,
I have recently purchased a cheap (35 ukp exclusive of VAT) digital camera
from scan (http://www.scan.co.uk/cameras.htm - Scan e-studio digital camera)
with the following features:
CIF & QCIF selectable resolution imaging
16Mbit memory (20 CIF/80 QCIF images)
RS232 & USB port
continuous take mode to memory whilst disconnected
streaming capture whilst connected to USB
>From the outside, it looks like a cheap and nasty plastic film camera - it
comes with a dinky little tripod mount for when you want to use it as a
webcam. Cracking the case open reveals an STV0680 surface mount ASIC. A google
search for this chip ID turns up the following:
http://www.st-angliamicro.com/newsarchive/st40.htm
There are no downloadable specs from this site; in fact, that is the only page
which mentions this chip (it's not even in their catalogue). Interestingly
enough, you can connect a VGA res CCD to this chip and up to 64Mbit memory.
In the mean time, whilst poking around in the kernel source I came across the
CPiA driver - and webcam.sourceforge.net. It was then I noticed the link
between STM and VLSI Vision - a similar (earlier ?) chipset, Vision STV0673 is
even mentioned on the page. The USB vendor ID in the CPiA driver is the same
as my camera, but the device ID is different (mine is 0x202 instead of 0x002).
I did try modifying the CPiA driver to recognise 0x202 instead of 0x002 in the
vain hope that they had used the same protocol, but khubd blew up with a NULL
pointer dereference.
It's apparent that Vision (Henry Bruce in particular) has supplied the
community with full specs for their previous chipsets - is there any
established protocol for contacting them, or should I just mail them direct ?
I'm very keen to get this camera working with Linux :-) (especially because
the streaming video support which comes with it is lame - it's just a test app
from the developers kit so you can't save the stream or do anything useful
with it, and it only gets 1-4 fps due to early drivers - the docs indicate it
should do 9fps CIF, 20fps+ QCIF)
Cheers,
Adam.
--
Adam Harrison - Senior Analyst - Secure Systems Group, AGSL.
From adam@antispin.org Tue, 15 Aug 2000 09:13:49 +0100
Date: Tue, 15 Aug 2000 09:13:49 +0100
From: Adam Harrison adam@antispin.org
Subject: [cpia] More STV0680
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Hello Again,
This list doesn't seem to have much life to it, I'm afraid I got impatient and
sent a polite email [attached] to Henry Bruce asking for the STV0680 specs :-)
You can see a picture of the camera at
http://www.scan.co.uk/images/cam-estudio.jpg
I've subsequently noticed that it comes with TWAIN/VfW drivers, the later of
which I now realise means 'Video for Windows'. The camera works beautifully
with netmeeting, without any of the performance problems alluded to in my last
post.
Cheers,
Adam.
--
Adam Harrison - Senior Analyst - Secure Systems Group, AGSL.
Work: (+44) 01753 804113 | Home: (+44) 01491 875027
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>From - Tue Aug 15 09:11:48 2000
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
Message-ID: <39981DFB.471E303D@antispin.org>
Date: Mon, 14 Aug 2000 17:27:39 +0100
From: Adam Harrison
X-Mailer: Mozilla 4.72 [en] (X11; U; Linux 2.4.0-test5 i686)
X-Accept-Language: en
MIME-Version: 1.0
To: whb@vvl.co.uk
Subject: STV0680
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Dear Mr Bruce,
I hope you do not mind my taking the liberty of mailing you directly. I found
your address in the 'Thanks' section of
linux/Documentation/video4linux/README.cpia in the linux source tree.
I have recently acquired a digital camera which uses the Vision STV0680
co-processor, coupled with a CIF resolution sensor and 16Mbit of memory. I am
very keen to write a linux USB device driver to support this chip, and I
understand that you have been extremely helpful in the past in providing
documentation to the linux community (webcam.sourceforge.net has an archive of
datasheets and sample sourcecode for what appears to be an earlier chipset,
the CPiA).
I was wondering if it would be possible to obtain the same level of
documentation for the STV0680 ? My ultimate goal is to write a driver which
supports both streaming capture via the video4linux API as well as access to
thumbnails and stored images for user space applications such as gPhoto, to be
released under the GPL.
Yours Sincerely,
Adam Harrison.
--
Adam Harrison - Senior Analyst - Secure Systems Group, AGSL.
Work: (+44) 01753 804113 | Home: (+44) 01491 875027
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From luc.stepniewski@c2a.fr Wed, 16 Aug 2000 11:51:08 +0200
Date: Wed, 16 Aug 2000 11:51:08 +0200
From: Luc Stepniewski luc.stepniewski@c2a.fr
Subject: [cpia] message keeps repeating in logs "ECP direction: reverse" ?
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Hello,
I've been using successfully a creative labs webcam II on parallel port
on
a bi-Celeron machine, with kernel 2.2.x, getting 20 fps without any
problem.
I've upgraded my machine to kernel 2.4.0-test6, which includes the CPIA
module in standard (cool !). I've compiled the parport support with
FIFO/DMA,
and 1284 transfer mode too.
When I modprobe the cpia module, the parport, parport_pc, videodev and
cpia_pp
are well loaded:
Linux video capture interface: v1.00
V4L-Driver for Vision CPiA based cameras v0.7.4
Parallel port driver for Vision CPiA based cameras v0.7.4
0x378: FIFO is 16 bytes
0x378: writeIntrThreshold is 16
0x378: readIntrThreshold is 16
0x378: PWord is 8 bits
0x378: Interrupts are ISA-Pulses
0x378: ECP port cfgA=0x10 cfgB=0x48
0x378: ECP settings irq=7 dma=
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,COMPAT,EPP,ECP]
parport0: irq 7 detected
parport0: cpp_daisy: aa5500ff(10)
parport0: assign_addrs: aa5500ff(10)
parport0: Multimedia device, VLSI Vision Ltd PPC2 Camera
parport0: ECP direction: reverse
last message repeated 7 times
CPiA Version: 1.20 (2.0)
CPiA PnP-ID: 0553:0002:0100
VP-Version: 1.0 0100
But, when I try to use it with xawtv (for example), the fps is sooooooo
slow !
(less than 5 fps). I noticed that the logs are filled with the following
error/warning:
parport0: ECP direction: reverse
Aug 16 11:25:13 machine last message repeated 1251 times
Aug 16 11:26:14 machine last message repeated 1567 times
Aug 16 11:27:05 machine last message repeated 1173 times
As you can see, something is wrong :-) Can anyone tell me what to do ?
Is this a bug in the kernel or in cpia ?
Thanks,
Luc
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From Peter_Pregler@email.com Wed, 16 Aug 2000 16:42:20 +0200
Date: Wed, 16 Aug 2000 16:42:20 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] message keeps repeating in logs "ECP direction: reverse" ?
On Wed, Aug 16, 2000 at 11:51:08AM +0200, Luc Stepniewski wrote:
>
> I've been using successfully a creative labs webcam II on parallel
> port on a bi-Celeron machine, with kernel 2.2.x, getting 20 fps
> without any problem. I've upgraded my machine to kernel
> 2.4.0-test6, which includes the CPIA module in standard (cool
> !).
The 2.2.16 does include the driver as well.
> I've compiled the parport support with FIFO/DMA, and 1284
> transfer mode too.
[...]
> But, when I try to use it with xawtv (for example), the fps is sooooooo
> slow !
> (less than 5 fps). I noticed that the logs are filled with the following
> error/warning:
> parport0: ECP direction: reverse
> Aug 16 11:25:13 machine last message repeated 1251 times
This is just a debug-message of the parport people. Ignore it.
> As you can see, something is wrong :-) Can anyone tell me what to do ?
> Is this a bug in the kernel or in cpia ?
Due to massive changes in the 2.4.test version of the parport-driver
the cpia-driver cannot use its own dma/fifo-io code anymore, at least
not without major tweaking. Now since the proper parport ieee1284
transfer modes (fifo/dma streaming read) are not yet implemented for
2.4.x the underlying parport driver does as a last resort a read byte
by byte. I am actually astonished that you get 5fps. I wanted to write
the relevant parport driver code for 2.4.test since about March but
have neither found the energy nor time to do so. If anyone is
interested mail me. I can point you to the relevant code.
Sorry, Peter
--
I will not waste chalk. --Bart Simpson at the blackboard
--------------------------------------------------------
Email: Peter_Pregler@email.com
WWW: http://www.risc.uni-linz.ac.at/people/ppregler
ICQ: 61011460
From rvt@dds.nl Sun, 27 Aug 2000 21:32:36 GMT
Date: Sun, 27 Aug 2000 21:32:36 GMT
From: Ries van Twisk rvt@dds.nl
Subject: [cpia] aiptek webcam works
I Folks,
I just wanted top tell you that the 'webcam HyperVcam Fun' is supported
using the Cpia driver (0553:0002).
You can find more information on this webcam on www.aiptek.de
This is tested in a 2.2.16 kernel with the USB patch.
Only one minor thing is that i sometimes get a VIDIOCGFBUF ioctl error.
It looks like this has something to do with the 'v4lctl/v4l-conf'
programs. I'm currently digging into this.... I'm using Debian Potato distro.
Since I'm not on this list you should repy me to rvt@dds.nl
Regards,
Ries van Twisk
rvt@dds.nl
From Peter_Pregler@email.com Mon, 28 Aug 2000 10:19:50 +0200
Date: Mon, 28 Aug 2000 10:19:50 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] Trust SpaceC@m lite works
Hi all,
I just wanted you to tell that the Trust SpaceC@m lite (www.trust.com)
is also CPiA based and is available in Austria. :)
Greetings, Peter
--
I will not waste chalk. --Bart Simpson at the blackboard
--------------------------------------------------------
Email: Peter_Pregler@email.com
WWW: http://www.risc.uni-linz.ac.at/people/ppregler
ICQ: 61011460
From Peter_Pregler@email.com Mon, 28 Aug 2000 10:21:41 +0200
Date: Mon, 28 Aug 2000 10:21:41 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] new version of cpia-control available
Hi,
I have released a new version of the cpia-control program. There are
only two changes:
- support for the lights of the Intel QX3 microscope
- small patch related to the formatting in the proc-filesystem
Now since I have two cameras I am working on a glade-based
rewrite. Stay tuned.
Have fun, Peter
--
I will not waste chalk. --Bart Simpson at the blackboard
--------------------------------------------------------
Email: Peter_Pregler@email.com
WWW: http://www.risc.uni-linz.ac.at/people/ppregler
ICQ: 61011460
From Peter_Pregler@email.com Mon, 28 Aug 2000 10:28:39 +0200
Date: Mon, 28 Aug 2000 10:28:39 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] Re: 2 cameras streaming at once?
Hi,
I just got a second USB camera and can now run a parport and a usb
based camera at the same time without any problems. I tried the
version in the usb-backport
(usb-2.4.0-test2-pre2-for-2.2.16-v3.diff.gz) and the 1.1-version from
the web-site. So at least one parport and one usb seem to work. I will
get a few usb-cameras in a few weeks. Until then I cannot verify if
the usb-driver is correct with regards to more than one camera. And I
am right now a bit too lazy to do a code review of that since I did
not write that portion of the code. Can anyone of the USB-guys have a
short look at the code?
-Peter
On Mon, Aug 07, 2000 at 08:11:48AM -0700, Jobe Bittman wrote:
> I'm a new member to the list. I have a Creative WebCam II and a Ezonics USB
> camera. I tried kernel-2.4-test5 support but it couldn't use 2 cameras at
> once with gqcam. So I followed advice I found on the mailing list archive.
> I went to kenel 2.2.16 and applied the USB backport patch. I compiled usb
> and V4L support into my kernel but not CPiA support. I inserted the
> videodev and cpia modules and I can capture one device at a time. I have n
> SMP machine so I tried it with a uniprocessor kernel adding and subtracting
> -__SMP__ to the module compile but that didn't make a difference. Is anyone
> on the list at all able to see 2 video streams at once? What cameras are
> you using? Which kernel versions? Can I run two instances of gqcam or do
> they conflict with each other? What other programs hpeople had luck with.
>
> Jobe Bittman
--
I will not waste chalk. --Bart Simpson at the blackboard
--------------------------------------------------------
Email: Peter_Pregler@email.com
WWW: http://www.risc.uni-linz.ac.at/people/ppregler
ICQ: 61011460
From jobe@tns.net Mon, 28 Aug 2000 10:34:21 -0700
Date: Mon, 28 Aug 2000 10:34:21 -0700
From: Jobe Bittman jobe@tns.net
Subject: [cpia] Re: 2 cameras streaming at once?
I gav up on 2 cam streams. I have 2 USB Create WebCam IIs. I am trying to
replace the 2 windows machines my friend runs www.lizardcam.com on with one
pentium linux box. Using vidcat(from the w3cam package) and stamp I can get
the images but my cron job eventually locks up the video device after a
couple hours of screen captures every 30 seconds with cpia support compiled
into the kernel (2.4.0-test7). I tried changing to kernel modules and
loading an unloading the modules before each set of captures but that only
prolongs it another couple hours until it dies again. When it dies as a
module I get really funky errors, not just /dev/video not available. These
last two tests were with the linux kernel driver not the cpia third party
driver. I am going to try your driver tonight with kernel2.16 and USB
backport both ways. Is anyone using cpia-based cameras with linux for a
webcam? Can you give me any tips on better ways to do my captures?
Thanks,
Jobe Bittman
At 10:28 AM 8/28/00 +0200, Peter Pregler wrote:
>Hi,
>
>I just got a second USB camera and can now run a parport and a usb
>based camera at the same time without any problems. I tried the
>version in the usb-backport
>(usb-2.4.0-test2-pre2-for-2.2.16-v3.diff.gz) and the 1.1-version from
>the web-site. So at least one parport and one usb seem to work. I will
>get a few usb-cameras in a few weeks. Until then I cannot verify if
>the usb-driver is correct with regards to more than one camera. And I
>am right now a bit too lazy to do a code review of that since I did
>not write that portion of the code. Can anyone of the USB-guys have a
>short look at the code?
>
>-Peter
>
>On Mon, Aug 07, 2000 at 08:11:48AM -0700, Jobe Bittman wrote:
> > I'm a new member to the list. I have a Creative WebCam II and a Ezonics
> USB
> > camera. I tried kernel-2.4-test5 support but it couldn't use 2 cameras at
> > once with gqcam. So I followed advice I found on the mailing list archive.
> > I went to kenel 2.2.16 and applied the USB backport patch. I compiled usb
> > and V4L support into my kernel but not CPiA support. I inserted the
> > videodev and cpia modules and I can capture one device at a time. I have n
> > SMP machine so I tried it with a uniprocessor kernel adding and
> subtracting
> > -__SMP__ to the module compile but that didn't make a difference. Is
> anyone
> > on the list at all able to see 2 video streams at once? What cameras are
> > you using? Which kernel versions? Can I run two instances of gqcam or do
> > they conflict with each other? What other programs hpeople had luck with.
> >
> > Jobe Bittman
>
>--
>I will not waste chalk. --Bart Simpson at the blackboard
>--------------------------------------------------------
>Email: Peter_Pregler@email.com
>WWW: http://www.risc.uni-linz.ac.at/people/ppregler
>ICQ: 61011460
>
>_______________________________________________
>cpia mailing list - cpia@risc.uni-linz.ac.at
>http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
From Peter_Pregler@email.com Tue, 29 Aug 2000 08:22:06 +0200
Date: Tue, 29 Aug 2000 08:22:06 +0200
From: Peter Pregler Peter_Pregler@email.com
Subject: [cpia] Re: 2 cameras streaming at once?
On Mon, Aug 28, 2000 at 10:34:21AM -0700, Jobe Bittman wrote:
> I gav up on 2 cam streams. I have 2 USB Create WebCam IIs. I am trying to
> replace the 2 windows machines my friend runs www.lizardcam.com on with one
> pentium linux box. Using vidcat(from the w3cam package) and stamp I can get
> the images but my cron job eventually locks up the video device after a
> couple hours of screen captures every 30 seconds with cpia support compiled
> into the kernel (2.4.0-test7).
There is definitly some driver-issue with mutliple cameras. However
due to various reasons I can neither stress test my parport/usb pair
nor do I have two USB cameras. So as for me it will take a few weeks
until I can debug it.
> I tried changing to kernel modules and loading an unloading the
> modules before each set of captures but that only prolongs it
> another couple hours until it dies again. When it dies as a module I
> get really funky errors, not just /dev/video not available. These
> last two tests were with the linux kernel driver not the cpia third
> party driver. I am going to try your driver tonight with kernel2.16
> and USB backport both ways. Is anyone using cpia-based cameras with
> linux for a webcam? Can you give me any tips on better ways to do my
> captures?
The kernel-driver and the driver at webcam.sourceforge.net are the
same source. There are no third-party driver.
-Peter
--
I will not waste chalk. --Bart Simpson at the blackboard
--------------------------------------------------------
Email: Peter_Pregler@email.com
WWW: http://www.risc.uni-linz.ac.at/people/ppregler
ICQ: 61011460
From j.m.maurer@student.utwente.nl 29 Aug 2000 14:03:37 -0100
Date: 29 Aug 2000 14:03:37 -0100
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Streaming
Hi All!
I'm using a creative webcam on a remote Linux computer and everything
works fine :)
Now my question: does anyone know if there is streaming software for
linux so that I can connect to the linux computer using (forgive me) the
Windows Media PLayer?
Thx in advance,
Marc
From nicolas.roussel@gmd.de Wed, 30 Aug 2000 12:22:33 +0200 (CEST)
Date: Wed, 30 Aug 2000 12:22:33 +0200 (CEST)
From: Nicolas Roussel nicolas.roussel@gmd.de
Subject: [cpia] cpia_usb / usb-ohci problem (a new one?)
Hi,
I tried to use a Terracam USB camera (cpia driver) yesterday with an
OHCI USB card (kernel 2.4.0-test7) and it didn't work. I got no image
but only messages like:
"cpia data error: [1] len=0, status=FFFFFFEE"
(I don't have the actual log with me but I can send it later)
I tried a Creative WebCam III with the ov511 driver on the same
machine and it worked perfectly with the OHCI card.
I also tried the Terracam on another machine with UHCI USB and it also
worked perfectly.
I found some posts to linux-usb (April 2000) relating the same
problems, but no solution. There are also lots of recent posts to
linux-usb-devel about cpia/ohci problems, but not directly related to
this one.
Any idea ?
--
________________________________________________________________________
Nicolas Roussel mailto:nicolas.roussel@gmd.de
GMD - FIT.HCI, Schloss Birlinghoven http://fit.gmd.de/~roussel/
53754 St. Augustin, Germany phone: +49 2241 14-2154 / fax: 14-2065
________________________________________________________________________
From j.m.maurer@student.utwente.nl 30 Aug 2000 11:14:45 -0100
Date: 30 Aug 2000 11:14:45 -0100
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Streaming
> 2. Real Media Basic Producer and Server are free and avail for linux (I
> found the links to the free download through Broadcast2000's site - However
> this would require the Real Player instead
>
> I'd be curious to hear if you get any of these to do it for you!
Do you remember the exact links? I can't seem to find it :)
Marc
>
>
> cheers
>
> Tobias
>
>
>
>
> ----- Original Message -----
> From: "j.m.maurer"
> To:
> Sent: Tuesday, August 29, 2000 08:03
> Subject: [cpia] Streaming
>
>
> > Hi All!
> >
> > I'm using a creative webcam on a remote Linux computer and everything
> > works fine :)
> > Now my question: does anyone know if there is streaming software for
> > linux so that I can connect to the linux computer using (forgive me) the
> > Windows Media PLayer?
> >
> > Thx in advance,
> > Marc
> >
> >
> > _______________________________________________
> > cpia mailing list - cpia@risc.uni-linz.ac.at
> > http://mailman.risc.uni-linz.ac.at/mailman/cgi-bin/listinfo/cpia
>
From j.m.maurer@student.utwente.nl 30 Aug 2000 16:40:33 -0100
Date: 30 Aug 2000 16:40:33 -0100
From: j.m.maurer j.m.maurer@student.utwente.nl
Subject: [cpia] Streaming
> So good luck and share it if you do find !
I finally found the RealMedia Producer here:
http://proforma.real.com/rn/tools/producer/index.html?src=000228realhome,prdcr_010300
and the RealMedia Server here:
http://proforma.real.com/rn/servers/univdwnld/index.html
now let's try to get them to work :)
Thanx again!
Marc
From LinuxWebcam@exchange.ware.net Wed, 30 Aug 2000 12:43:44 -0700
Date: Wed, 30 Aug 2000 12:43:44 -0700
From: Linux Webcam LinuxWebcam@exchange.ware.net
Subject: [cpia] Any developers familiar with HTTP PUSH?
Hi Folks,
I'm looking for a developer that familiar with HTTP push to write a
small(ish) application for me
If you're interested please contact me off the list.
Thanks
lance @ ware . net
From matricz@macht.xmldesign.de Thu, 31 Aug 2000 09:40:34 +0200
Date: Thu, 31 Aug 2000 09:40:34 +0200
From: Robert Hennig matricz@macht.xmldesign.de
Subject: [cpia] Problem: USB / TerraCam]
This is a multi-part message in MIME format.
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Hi there,
Ive got a big problem with my TerraCam.
At time Im running Debian 2.2 with Kernel 2.2.16 and some patches
(ReiserFS,
USB, and the cpia-modules) - and the same problem exists on the
2.4pre5-kernel.
So, the problem: The webcam might be disconnected without any reason and
reconnected by the uhci-module. The light at the camp is for a moment
off/on.
Then the application, like xawtv gqcam and so on, tells me /dev/video
doesn't exists.
This happens every time in an 30second till 3min random intervall.
Here are the kernel-messages:
loading the uhci-module
------
hae:/# > modprobe uhci
Aug 26 11:53:02 hae kernel: usb.c: registered new driver hub
Aug 26 11:53:02 hae kernel: uhci.c: USB UHCI at I/O 0xdc00, IRQ 10
Aug 26 11:53:02 hae kernel: uhci.c: detected 2 ports
Aug 26 11:53:02 hae kernel: usb.c: new USB bus registered, assigned bus
number 1
Aug 26 11:53:02 hae kernel: usb.c: USB new device connect, assigned
device number 1
Aug 26 11:53:02 hae kernel: hub.c: USB hub found
Aug 26 11:53:02 hae kernel: hub.c: 2 ports detected
Aug 26 11:53:02 hae kernel: uhci.c: root-hub INT complete: port1: 48a
port2: 49b data: 6
Aug 26 11:53:02 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 499 data: 4
Aug 26 11:53:03 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 499 data: 4
Aug 26 11:53:03 hae kernel: usb.c: USB new device connect, assigned
device number 2
Aug 26 11:53:03 hae kernel: usb.c: This device is not recognized by any
installed USB driver.
Aug 26 11:53:03 hae kernel: hub.c: already running port 2 disabled by
hub (EMI?), re-enabling...
Aug 26 11:53:03 hae kernel: usb.c: USB disconnect on device 2
Aug 26 11:53:04 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 68a data: 4
Aug 26 11:53:04 hae kernel: usb.c: USB new device connect, assigned
device number 2
Aug 26 11:53:04 hae kernel: usb.c: This device is not recognized by any
installed USB driver.
-----
loading the cpia-Module
-----
hae:/# > modprobe cpia_usb
Aug 26 11:53:07 hae kernel: Linux video capture interface: v1.00
Aug 26 11:53:08 hae kernel: V4L-Driver for Vision CPiA based cameras
v1.0.0
Aug 26 11:53:08 hae kernel: usb.c: registered new driver cpia
Aug 26 11:53:08 hae kernel: USB CPiA camera found
Aug 26 11:53:08 hae kernel: CPiA Version: 1.30 (2.10)
Aug 26 11:53:08 hae kernel: CPiA PnP-ID: 0553:0002:0100
Aug 26 11:53:08 hae kernel: VP-Version: 1.0 0141
-----
starting the application
------
matrix@hae:/home/matrix > gqcam
7.000 fps
6.000 fps
14.000 fps
14.000 fps
Error read image
: Input/output error
------
then the application doesnt response to anything. so I close it.
------
Aug 26 11:53:13 hae kernel: cpia data error: [4] len=140,
status=FFFFFFC1
Aug 26 11:53:13 hae kernel: cpia data error: [5] len=780,
status=FFFFFFC1
Aug 26 11:53:13 hae kernel: cpia.c:parse_picture(2282):EOL not found
giving up after 142810/153388 bytes
Aug 26 11:53:15 hae kernel: uhci.c: uhci_result_control() failed with
status 440000
Aug 26 11:53:15 hae kernel: URB [c8f69480] urbp [c794b068]
Aug 26 11:53:15 hae kernel: QH [c791e020]
Aug 26 11:53:15 hae kernel: td 0: [c795b5a0]
Aug 26 11:53:15 hae kernel: 0795b520 e3 Length=7 MaxLen=7 DT0
EndPt=0 Dev=2, PID=2d(SETUP) (buf=04230b20)
Aug 26 11:53:15 hae kernel: td 1: [c795b520]
Aug 26 11:53:15 hae kernel: 0795b560 e3 Length=7 MaxLen=7 DT1
EndPt=0 Dev=2, PID=69(IN) (buf=0942bd0c)
Aug 26 11:53:15 hae kernel: td 2: [c795b560]
Aug 26 11:53:15 hae kernel: 00000001 e0 IOC Stalled CRC/Timeo
Length=7ff MaxLen=7ff DT1 EndPt=0 Dev=2, PID=e1(OUT) (buf=00000000)
Aug 26 11:53:26 hae kernel: cpia.c:parse_picture(2308):line length was
not 1 but -2 after 17156/130304 bytes
Aug 26 11:53:26 hae kernel: cpia data error: [3] len=652,
status=FFFFFFC1
Aug 26 11:53:26 hae kernel: cpia.c:parse_picture(2282):EOL not found
giving up after 16325/201428 bytes
Aug 26 11:53:29 hae kernel: cpia data error: [4] len=204,
status=FFFFFFC1
<>
Aug 26 11:53:33 hae kernel: cpia data error: [8] len=76, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: cpia data error: [9] len=0, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: cpia data error: [0] len=0, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: cpia data error: [1] len=0, status=FFFFFFAC
<< snip >>
Aug 26 11:53:33 hae kernel: cpia data error: [9] len=0, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 499 data: 4
Aug 26 11:53:33 hae kernel: hub.c: already running port 2 disabled by
hub (EMI?), re-enabling...
Aug 26 11:53:33 hae kernel: cpia data error: [0] len=0, status=FFFFFFAC
^^^^^^^^^^^^^^^^^^^^^^^^^^ Diese Meldung ungefaehr hundert mal.
.....
Aug 26 11:53:34 hae kernel: usb.c: USB disconnect on device 2
Aug 26 11:53:34 hae kernel:
cpia.c:cpia_unregister_camera(3623):/dev/video0 removed while open,
deferring video_unregister_device
Aug 26 11:53:34 hae kernel: usb.c: USB new device connect, assigned
device number 2
Aug 26 11:53:34 hae kernel: USB CPiA camera found
Aug 26 11:53:35 hae kernel: CPiA Version: 1.30 (2.10)
Aug 26 11:53:35 hae kernel: CPiA PnP-ID: 0553:0002:0100
Aug 26 11:53:35 hae kernel: VP-Version: 1.0 0141
--------
thats all.
does anybody could help me or even know this problem?
Me were told that the cam would be running fine.
If somebody need more information of my PC then contact me.
But I think I should say I have an VIA-mainboard (VIA USB-Hub or
something)
thanks!
robert
----------------------------------------------------------------
Robert Hennig +++ Nick @ euIRCnet (irc.euirc.net): matrix
----------------------------------------------------------------
CChheecckk yyoouurr dduupplleexx sswwiittcchh..
----------------------------------------------------------------
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Path: uni-berlin.de!p3ee1d4d6.dip0.t-ipconnect.DE!not-for-mail
From: Robert Hennig
Newsgroups: de.comp.os.unix.linux.hardware
Subject: Problem: USB / TerraCam
Date: Sat, 26 Aug 2000 16:26:50 +0200
Organization: ZDF
Message-ID: <39A7D3AA.6C656308@macht.xmldesign.de>
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Hi,
ich haette da ein kleines Problem mit meiner USB Webcam.
Im Moment fahre ich den Kernel 2.2.16 + ReiserFS-Patch + USB+Patch +
cpia-Module.
Aber das gleiche Problem taucht auch beim 2.4pre5er auf.
Nun, das Problem: Die Webcam scheint von den uhci-Modul immer wieder
"disconnectet"
zu werden. Warum auch immer. Das Laempchen der Kamera leuchtet kurz
aus/ein und dann
wars das auch schon mit jeglicher Anwendungen (xawtv, webcam, gqam), da
/dev/video demnach
nicht mehr existiert [bzw. nicht mehr zugegriffen kann].
Folgende Meldungen aus dem Kernel:
UHCI-Module laden.
------
hae:/# > modprobe uhci
Aug 26 11:53:02 hae kernel: usb.c: registered new driver hub
Aug 26 11:53:02 hae kernel: uhci.c: USB UHCI at I/O 0xdc00, IRQ 10
Aug 26 11:53:02 hae kernel: uhci.c: detected 2 ports
Aug 26 11:53:02 hae kernel: usb.c: new USB bus registered, assigned bus
number 1
Aug 26 11:53:02 hae kernel: usb.c: USB new device connect, assigned
device number 1
Aug 26 11:53:02 hae kernel: hub.c: USB hub found
Aug 26 11:53:02 hae kernel: hub.c: 2 ports detected
Aug 26 11:53:02 hae kernel: uhci.c: root-hub INT complete: port1: 48a
port2: 49b data: 6
Aug 26 11:53:02 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 499 data: 4
Aug 26 11:53:03 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 499 data: 4
Aug 26 11:53:03 hae kernel: usb.c: USB new device connect, assigned
device number 2
Aug 26 11:53:03 hae kernel: usb.c: This device is not recognized by any
installed USB driver.
Aug 26 11:53:03 hae kernel: hub.c: already running port 2 disabled by
hub (EMI?), re-enabling...
Aug 26 11:53:03 hae kernel: usb.c: USB disconnect on device 2
Aug 26 11:53:04 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 68a data: 4
Aug 26 11:53:04 hae kernel: usb.c: USB new device connect, assigned
device number 2
Aug 26 11:53:04 hae kernel: usb.c: This device is not recognized by any
installed USB driver.
-----
cpia-Module laden
-----
hae:/# > modprobe cpia_usb
Aug 26 11:53:07 hae kernel: Linux video capture interface: v1.00
Aug 26 11:53:08 hae kernel: V4L-Driver for Vision CPiA based cameras
v1.0.0
Aug 26 11:53:08 hae kernel: usb.c: registered new driver cpia
Aug 26 11:53:08 hae kernel: USB CPiA camera found
Aug 26 11:53:08 hae kernel: CPiA Version: 1.30 (2.10)
Aug 26 11:53:08 hae kernel: CPiA PnP-ID: 0553:0002:0100
Aug 26 11:53:08 hae kernel: VP-Version: 1.0 0141
-----
Anwendung laden
------
matrix@hae:/home/matrix > gqcam
7.000 fps
6.000 fps
14.000 fps
14.000 fps
Error read image
: Input/output error
------
Und die Anwendung reagiert schon gar nicht mehr. Also schliessen.
Aug 26 11:53:13 hae kernel: cpia data error: [4] len=140,
status=FFFFFFC1
Aug 26 11:53:13 hae kernel: cpia data error: [5] len=780,
status=FFFFFFC1
Aug 26 11:53:13 hae kernel: cpia.c:parse_picture(2282):EOL not found
giving up after 142810/153388 bytes
Aug 26 11:53:15 hae kernel: uhci.c: uhci_result_control() failed with
status 440000
Aug 26 11:53:15 hae kernel: URB [c8f69480] urbp [c794b068]
Aug 26 11:53:15 hae kernel: QH [c791e020]
Aug 26 11:53:15 hae kernel: td 0: [c795b5a0]
Aug 26 11:53:15 hae kernel: 0795b520 e3 Length=7 MaxLen=7 DT0
EndPt=0 Dev=2, PID=2d(SETUP) (buf=04230b20)
Aug 26 11:53:15 hae kernel: td 1: [c795b520]
Aug 26 11:53:15 hae kernel: 0795b560 e3 Length=7 MaxLen=7 DT1
EndPt=0 Dev=2, PID=69(IN) (buf=0942bd0c)
Aug 26 11:53:15 hae kernel: td 2: [c795b560]
Aug 26 11:53:15 hae kernel: 00000001 e0 IOC Stalled CRC/Timeo
Length=7ff MaxLen=7ff DT1 EndPt=0 Dev=2, PID=e1(OUT) (buf=00000000)
Aug 26 11:53:26 hae kernel: cpia.c:parse_picture(2308):line length was
not 1 but -2 after 17156/130304 bytes
Aug 26 11:53:26 hae kernel: cpia data error: [3] len=652,
status=FFFFFFC1
Aug 26 11:53:26 hae kernel: cpia.c:parse_picture(2282):EOL not found
giving up after 16325/201428 bytes
Aug 26 11:53:29 hae kernel: cpia data error: [4] len=204,
status=FFFFFFC1
<>
Aug 26 11:53:33 hae kernel: cpia data error: [8] len=76, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: cpia data error: [9] len=0, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: cpia data error: [0] len=0, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: cpia data error: [1] len=0, status=FFFFFFAC
<< snip >>
Aug 26 11:53:33 hae kernel: cpia data error: [9] len=0, status=FFFFFFAC
Aug 26 11:53:33 hae kernel: uhci.c: root-hub INT complete: port1: 480
port2: 499 data: 4
Aug 26 11:53:33 hae kernel: hub.c: already running port 2 disabled by
hub (EMI?), re-enabling...
Aug 26 11:53:33 hae kernel: cpia data error: [0] len=0, status=FFFFFFAC
^^^^^^^^^^^^^^^^^^^^^^^^^^ Diese Meldung ungefaehr hundert mal.
.....
Aug 26 11:53:34 hae kernel: usb.c: USB disconnect on device 2
Aug 26 11:53:34 hae kernel:
cpia.c:cpia_unregister_camera(3623):/dev/video0 removed while open,
deferring video_unregister_device
Aug 26 11:53:34 hae kernel: usb.c: USB new device connect, assigned
device number 2
Aug 26 11:53:34 hae kernel: USB CPiA camera found
Aug 26 11:53:35 hae kernel: CPiA Version: 1.30 (2.10)
Aug 26 11:53:35 hae kernel: CPiA PnP-ID: 0553:0002:0100
Aug 26 11:53:35 hae kernel: VP-Version: 1.0 0141
--------
Und das wars auch schon mit Kamera. Hilft nur noch ein
entladen/wiederladen der
cpia-Module. Und das gleiche Problem faengt wieder von vorne an.
Weiss jemand mit was das zusammenhaengen koennte?
Ich hab eigentlich nur berichtet bekommen dass die Kamera bei anderen
Leuten
ohne Probleme laufen soll.
Wenn jemand mehr Infos ueber mein System braucht, kann ich diese gerne
zur
Verfuegung stellen. Ich moechte euch nicht noch weiter ellenlang mit
Messages
belaestigen und hoffe mal dass einer mir helfen kann, wenn nicht auch
mehrere.
MfG
robert
--
----------------------------------------------------------------
Robert Hennig +++ Nick @ euIRCnet (irc.euirc.net): matrix
----------------------------------------------------------------
Computers are not intelligent. They only think they are.
----------------------------------------------------------------
--------------2D0D440F922C1ABC7D903ED9--
From davey@doa.org Fri, 1 Sep 2000 01:28:20 +1100 (EST)
Date: Fri, 1 Sep 2000 01:28:20 +1100 (EST)
From: David Murn davey@doa.org
Subject: [cpia] Problem: USB / TerraCam]
On Thu, 31 Aug 2000, Robert Hennig wrote:
> So, the problem: The webcam might be disconnected without any reason
> and reconnected by the uhci-module. The light at the camp is for a
> moment off/on. Then the application, like xawtv gqcam and so on, tells
> me /dev/video doesn't exists. This happens every time in an 30second
> till 3min random intervall.
I've gotten these errors too, but normally I find if I just restart the
app a couple of times, it comes back. So its a reproducable problem.
Davey
From matrix@voll-konkret.de Thu, 31 Aug 2000 17:23:42 +0000 (GMT)
Date: Thu, 31 Aug 2000 17:23:42 +0000 (GMT)
From: Rob matrix@voll-konkret.de
Subject: [cpia] Problem: USB / TerraCam]
On Fri, 1 Sep 2000, David Murn wrote:
> Date: Fri, 1 Sep 2000 01:28:20 +1100 (EST)
> From: David Murn
> To: Robert Hennig
> Cc: cpia@risc.uni-linz.ac.at
> Subject: Re: [cpia] Problem: USB / TerraCam]
>
> On Thu, 31 Aug 2000, Robert Hennig wrote:
>
> > So, the problem: The webcam might be disconnected without any reason
> > and reconnected by the uhci-module. The light at the camp is for a
> > moment off/on. Then the application, like xawtv gqcam and so on, tells
> > me /dev/video doesn't exists. This happens every time in an 30second
> > till 3min random intervall.
>
> I've gotten these errors too, but normally I find if I just restart the
> app a couple of times, it comes back. So its a reproducable problem.
>
I know. Thats because the video4linux-dev is restarted and maybe the app
is checking out what of the /dev/videoX is connected. But I think it sucks
to have to restarting the app a couple of times till it works again.
Doesn't there any resolution for this?
greets,
robert