Re: pac207: problem with Trust USB webcam

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Hi,

You need to use libv4l and have your apps patched
to use libv4l or use the LD_PRELOAD wrapper.

Here is the latest libv4l:
http://people.fedoraproject.org/~jwrdegoede/libv4l-0.6.5-test.tar.gz

And here are install instructions:
http://hansdegoede.livejournal.com/7622.html

Regards,

Hans


On 02/15/2010 12:38 AM, Frans Pop wrote:
Hello,

I'm having a problem with a (cheap) Trust USB webcam I bought yesterday.
It works fine under Windows XP.

The device is:
ID 093a:2460 Pixart Imaging, Inc. Q-TEC WEBCAM 100

For Linux I've found that it is recognized by the gspca_pac207 driver.
But opening the video device using xawtv or vlc shows nothing.
Problem seems to be that after I plug it in the led on the device goes
on, but after a very short time (less than a second) it goes out again.

When I plug it in (after a clean boot), dmesg shows:
usb 1-2.1: new full speed USB device using ehci_hcd and address 7
Linux video capture interface: v2.00
gspca: main v2.8.0 registered
gspca: probing 093a:2460
pac207: Pixart Sensor ID 0x27 Chips ID 0x09
pac207: Pixart PAC207BCA Image Processor and Control Chip detected (vid/pid 0x093A:0x2460)
gspca: video0 created
usbcore: registered new interface driver pac207
pac207: registered

And the following (extra) modules get loaded:
Module                  Size  Used by
gspca_pac207            6021  0
gspca_main             22454  1 gspca_pac207
videodev               37424  1 gspca_main
v4l1_compat            12201  1 videodev
v4l2_compat_ioctl32     9867  1 videodev

I'm running 2.6.33-rc8 (x86_64) on a Debian stable ("Lenny") system.

Kernel config, relevant contents from /sys/kernel/debug/usb/devices and
output from v4l-info attached. Some other info below.

This is the first time I'm trying a webcam, so it may be that I'm missing
something obvious. I googled around a fair bit, but nothing I tried helped.
Any help would be appreciated. I can provide any additional info that's
needed and test any kernel version.

Cheers,
FJP

$ ls -l /dev/video0
crw-rw---- 1 root video 81, 0 2010-02-14 23:16 /dev/video0
My user account is a member of the video group.

$ xawtv -hwscan
This is xawtv-3.95.dfsg.1, running on Linux/x86_64 (2.6.33-rc8)
looking for available devices
port 100-115
     type : Xvideo, image scaler
     name : Intel(R) Textured Video

port 116-116
     type : Xvideo, image scaler
     name : Intel(R) Video Overlay

/dev/video0: OK                         [ -device /dev/video0 ]
     type : v4l2
     name : CIF Single Chip
     flags:  capture
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