Video4Linux and WebCam /QickCam

chris4linux · Posted: Fri Jan 03, 2003 10:26 pm Post subject: Video4Linux and WebCam /QickCam

Hi folks,
After 1000 of hours testing and kernel compiling I don't know what I could do more....my problem:
I've the Logitech QuickCam but it won't work

I've compiled in kernel usb storage support, V4L and OHCI and so on. I've taken the driver from topic https://forums.gentoo.org/viewtopic.php?t=4067 but when I start xawtv I get the error msg:

This is xawtv-3.80, running on Linux/i686 (2.4.19-xfs-r2.5f)
WARNING: Your X-Server has no DGA support.
can't open /dev/v4l/video0: No such file or directory
v4l-conf had some trouble, trying to continue anyway
v4l2: open /dev/v4l/video0: No such file or directory
v4l2: open /dev/v4l/video0: No such file or directory
v4l: open /dev/v4l/video0: No such file or directory
no video grabber device available

what can I do? Any idea? what should be compiled in the kernel?

Thx4Answers,
- Chris
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NOTICE: alloc: /dev/null: filesystem full

Carlos · Posted: Sat Jan 04, 2003 1:33 am Post subject:

Have you compiled the driver directly into the kernel or as a module? In the latter case, have you started the module with modprobe? Any USB-related kernel messages would be helpful; have you gotten other USB devices working with your set-up?

Compiling in stuff like the USB devfs and the USB proc filesystem might be necessary, and even if not would make it much easier to debug your problem, methinks.
_________________
Man must shape his tools lest they shape him.

chris4linux · Posted: Sat Jan 04, 2003 10:25 pm Post subject:

everything is compiled in to the kernel....how can I get the /dev/video or /dev/v4l/video device?

Thx,
Chris
_________________
NOTICE: alloc: /dev/null: filesystem full

evidence · Tux's lil' helper Joined: 04 Nov 2002 Posts: 85

try this...

compile 'video for linux', 'usb support', 'usb-uhci' and 'usb-ohci' as modules. the qce-ga shell script (quickcam.sh) that loads the qce-ga module will load these modules for you, but they do have to be in module form.

also, make sure you have the video for linux entries in /etc/devfsd.conf

evidence · Tux's lil' helper Joined: 04 Nov 2002 Posts: 85

ahh yes...

also, some programs look for /dev/video. you can create the link from /dev/v4l/video0 to /dev/video by adding this to /etc/devfsd.conf.

chris4linux · Posted: Mon Jan 06, 2003 9:54 am Post subject:

thx for help, I'll try this and hope it works :-)

-Chris
_________________
NOTICE: alloc: /dev/null: filesystem full

nybbles · n00b Joined: 10 May 2003 Posts: 55 Location: Vancouver

i have a favour to ask:

can someone do an lsmod and tell me what they get that is relevant to the quickcam express?

Before shifting to the openmosix cluster (woohooooo setiathome cluster!), my quickcam functioned perfectly (by looking at quickcam threads, including this one, thanks!)

back then... I had this module called v4l2-common... after i started using the openmosix kernel, v4l2-common was GONE!!! :cry:

Now I have mod_quickcam and videodev as the quickcam-specific modules (weird eh?) It worked for a while, but now for some reason its not working anymore. So... I was wondering if v4l is completely necessary? I mean... it did work...

Here's the modules lsmod-ed