[cpia] Ezonics EZDual Cam

Chris Wesneski wesneski@swbell.net
Tue, 31 Jul 2001 17:23:11 -0500


Is the video group important? I get chgrp: invalid group name video. I
tried it with group root and I get the same thing, no such device.
Thanks for the help though, I think I have larger problems :(

Scott Bronson wrote:
> 
> Let's just be sure you've got a decent device node.
> As root:
> 
> rm /dev/video /dev/video0
> mknod /dev/video0 c 81 0
> chmod 666 /dev/video0
> chgrp video /dev/video0
> ln -s /dev/video0 /dev/video
> 
> It should look like this:
> 
> crw-rw-rw-    1 root     video     81,   0 Nov  1  2000 /dev/video0
> 
> Now try it.
> 
>         - Scott
> 
> Chris Wesneski wrote:
> >
> > Ok so I did some more checking and I might be out of luck. I checked for
> > the the VID/PID and got 0x6f0/0xde01 which is registered to TNC
> > Industrial. I found their web page and they actually have windows
> > drivers for other similar part numbers, but not this one. I did however
> > try my QCam Express (with the qc drivers of course) and got the same
> > problem with /dev/video. I know this isn't the correct place for this
> > question but, if anyone can help can you mail me at wesneski@swbell.net?
> >
> > Chris Wesneski wrote:
> > >
> > > Does anyone know if the Ezonics EZDual Cam is CPiA based? I'm trying to
> > > get it to work with RH 7.1 (2.4.2-2 kernel) with the cpia-1.2 drivers
> > > with no luck. I've compiled the kernel with Video for linux and so forth
> > > (following a post from linuxnewbie.org about cpia based cams) and got
> > > the drivers to compile but when I insmod cpia.o I get:
> > >
> > > kernel: V4L-Driver for Vision CPiA based cameras v1.2.0
> > > modprobe: modprobe: Can't locate module cpia_usb
> > >
> > > then I do insmod cpia_usb.o:
> > >
> > > kernel: usb.c: registered new driver cpia
> > >
> > > I run ./gqcam and get:
> > > /dev/video: No such device
> > >
> > > and from the kernel:
> > >
> > > modprobe: modprobe: Can't locate module char-major-81-0
> > >
> > > I had a /dev/video already but it was a directory and when I ran gqcam
> > > it said /dev/video: Is a directory. Duh. So I moved that and created a
> > > hard link to /dev/video0 (why, I don't know, I was way over my head at
> > > this point). It seems like I'm just missing something small but I don't
> > > know what. Should there be some info about V4L loading somewhere? I'm
> > > lost. Help!
> > >
> > > Thanks in advance,
> > >
> > > Chris