Re: webcam support

On Thu, May 19, 2005 at 02:00:23PM +0200, Peter Poeml wrote:
> May 19 13:23:52 cube kernel: hub.c: connect-debounce failed, port 2 disabled
> May 19 13:23:55 cube kernel: hub.c: new USB device 10:18.0-2.1.2, assigned address 6
> May 19 13:23:55 cube kernel: drivers/usb/spca5xx.c: USB SPCA5XX camera found. Agfa ephoto CL20 spca500a
> May 19 13:23:55 cube kernel: drivers/usb/spca5xx.c: [spca5xx_probe:8175] Camera type JPEG
> 
> Promising as this is, :-) I'll build the viewer program next, and see
> what happens.

Wild flickering on the display, but only for a short time. (It does look
more like initialising the screen than an actual video stream.) In fact,
the spcaview terminates quite soon: 

(I tried it on the console and on X,
on X I was at least able to capture the output from the xterm, on the
console it set the virtual terminal to the requested solution 320x240
but didn't restore it. I am using framebuffer device)


# ./spcaview -f jpg -s 320x240
 Spcaview version:1.0.4 date: 01:05:2005 (C) mxhaard_at_magic.fr
 size width: 320 height: 240
Initializing SDL.
SDL initialized.
bpp 3 format 21
Using video device /dev/video0.
Initializing v4l.



^[[A^[[A^[[A^[[B^[[B^[[B**************** PROBING CAMERA *********************
Camera found: Agfa ephoto CL20

Bridge found: SPCA500

StreamId: JPEG Camera
Available Resolutions width 640  heigth 480 native
Available Resolutions width 352  heigth 288 native
Available Resolutions width 320  heigth 240 native *
Available Resolutions width 176  heigth 144 native
*****************************************************
 grabbing method default MMAP asked
VIDIOCGMBUF size 4915232  frames 4  offets[0]=0 offsets[1]=1228808
VIDIOCGPICT
brightnes=0 hue=0 color=0 contrast=0 whiteness=0
depth=8 palette=21
VIDIOCSPICT
brightness=0 hue=0 color=0 contrast=0 whiteness=0
depth=24 palette=21
Couldn't set 320*240x24 video mode: Couldn't set console screen info
zsh: 12100 exit 1     ./spcaview -f jpg -s 320x240


The corresponding kernel log was:

May 19 14:06:08 cube kernel: drivers/usb/spca5xx.c: [spca500_initialise:5921] Spca500 Sensor Address  0x00
May 19 14:06:08 cube kernel: klogd 1.4.1, ---------- state change ----------
May 19 14:06:08 cube kernel: Inspecting /boot/System.map-2.4.30-1-default
May 19 14:06:08 cube kernel: Loaded 16557 symbols from /boot/System.map-2.4.30-1-default.
May 19 14:06:08 cube kernel: Symbols match kernel version 2.4.30.
May 19 14:06:08 cube kernel: Loaded 1291 symbols from 29 modules.
May 19 14:06:13 cube kernel: drivers/usb/spca5xx.c: [spca500_initialise:5921] Spca500 Sensor Address  0x00
May 19 14:06:18 cube kernel: drivers/usb/spca5xx.c: [spca500_initialise:5921] Spca500 Sensor Address  0x00

Any idea what I can do?

Peter
-- 
the little machine that goes "ping" ate the pink cardinal