[cpia] client probs

[Peter Pregler]

Hi,

this was solved for me too in version 0.7.2. AFAIK it has to do with the
new memory allocation code in the 2.3 port. I have put 0.7.2 to 

http://www.risc.uni-linz.ac.at/people/ppregler/cpia/

until it is available on the standard web-site. I guess we need a new
strategy for the source distribution. Is is okay for you Jarl to add a
pointer and a comment to your source archive to my web-page? I guess I
have more time to keep the source up to date. Actually there is also a
reference missing to the control client.

-Peter

On 01-Mar-2000 Bastian wrote:
> I use the creative webcam II, kernel 2.2.13, reflection x as xserver on
> win98
> to connect to my linux box.
> bringing up the modules works fine :
> -------------
> Linux video capture interface: v1.00
> V4L-Driver for Vision CPiA based cameras v0.7.1
> Parallel port driver for Vision CPiA based cameras v0.7.1
>    using PIO mode
> cpia.c(49960):goto_low_power(2280):camera now in LOW power state
> cpia.c(49968):goto_high_power(2268):camera now in HIGH power state
> cpia.c(49980):dispatch_commands(2023):1 1 0 0 1 1 1 1
> cpia.c(49980):dispatch_commands(2024):0 1 1 1 1 1 0 1
> cpia.c(49984):save_camera_state(2300):0/0/185/0/220/214/214/230
> cpia.c(49984):save_camera_state(2304):32/6/92
>    CPiA Version: 1.02 (1.0)
>    CPiA PnP-ID: 0553:0001:0100
>    VP-Version: 1.0 0100
>    1 camera(s) found
> -------------
> 
> but when i try to start a client (xawtv, gqcam) i always get a
> segmentation 
> fault.
> dmesg says :
> 
> -------------
> Unable to handle kernel NULL pointer dereference at virtual address
> 0000000c
> current->tss.cr3 = 03537000, %cr3 = 03537000
> *pde = 00000000
> Oops: 0000
> CPU:    0
> EIP:    0010:[<c58640b3>]
> EFLAGS: 00010212
> eax: 00000000   ebx: 00032000   ecx: c3538000   edx: 00000316
> esi: c58dd000   edi: c58dd000   ebp: 0000001f   esp: c3539f2c
> ds: 0018   es: 0018   ss: 0018
> Process vidcat (pid: 582, process nr: 45, stackpage=c3539000)
> Stack: c5862540 c3612e00 c586ba94 00031ba5 c3311eb0 00000000 c586217f
> c3311eb0
>         00000000 00000000 c3648840 c34deff0 00000051 00000000 000000ff 
> c01c017c
>         c01e77e0 c01271cf c34deff0 c3648840 c3648840 00000000 c34deff0 
> c0125fa4
> Call Trace: [<c5862540>] [<c586ba94>] [<c586217f>] [<c01c017c>] 
> [<c01271cf>] [<c
> 0125fa4>] [<c012619a>]
>         [<c0107a2c>]
> Code: 8b 40 0c 8b 14 90 85 d2 74 3b 81 e2 00 f0 ff ff 89 f8 c1 e8
> -------------
> 
> what could it be ??
> 
> Bastian
> 
> 
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> 

-------------------------------
Email: Peter.Pregler@risc.uni-linz.ac.at
WWW:   http://www.risc.uni-linz.ac.at/people/ppregler