Re: [Linux-uvc-devel] a udev thing

[Laurent P. <lau...@sk...>]

Hi Niv,

> I think that QC 5000 owners may know how to help me.
> I wrote a rule for the webcam, but it seems that the alsa is loaded
> before video for linux and so the microphone in loaded , and my rule is
> not obied.
>
> I was wondering where I may read more to solve it.
>
> BUS="usb", SYSFS{idVendor}="046d", SYSFS{idProduct}="08c5",
> NAME="v4l/video2", S
> YMLINK="video2 qc5000" , GROUP="webcam"

I committed a new version of the driver two days ago which enable udev to 
handle the device properly. Tyr to use the following rule:

KERNEL="video[0-9]*", BUS="usb", SYSFS{idVendor}="046d", 
SYSFS{idProduct}="08c5", NAME="v4l/video2", SYMLINK="video2 qc5000", 
GROUP="webcam"

> also, I lost my /etc/group and /etc/passwd and wanted to add the missing
> groups.
>
> ls -la /dev/v4l/
> total 0
> drwxr-xr-x 2 root root 120 Mar 24 19:45 .
> drwxr-xr-x 21 root root 29600 Mar 25 00:24 ..
> crw-rw---- 1 root video 81, 64 Mar 22 19:33 radio0
> crw-rw---- 1 root video 81, 224 Mar 22 19:33 vbi0
> crw-rw---- 1 root webcam 81, 2 Mar 24 19:45 video0
> crw-rw---- 1 root tv 81, 0 Mar 24 19:45 video1
>
> I tried to add a group named webcam with gid 81:
> # fgrep 81 /etc/group
> webcam:x:81:niv
>
> but I still get the 81 listed and not "webcam"
> so how do I fix it?

81 is the device major number, not the group id. 'root' is the owner name and 
'webcam' the group name.

Laurent Pinchart