Thursday, February 18, 2010

[nslu2-linux] USB Webcam Problem

 

Hi. I'm hoping someone on this forum can help. I'm trying to install a Creative Labs Webcam Pro Ex on my NSLU2 with unslung firmware. I'm doing my best to follow the directions listed on http://www.nslu2-linux.org/wiki/HowTo/AddUsbWebcam.

I have installed the w3cam, videodev, and pwc optware packages with no problems, and run insmod to install the drivers. The /var/log/messages file says:

Feb 18 22:52:02 (none) user.info kernel: Linux video capture interface: v1.00
Feb 18 22:52:07 (none) user.info kernel: pwc Philips PCA645/646 + PCVC675/680/690 + PCVC730/740/750 webcam module version 8.11 loaded.
Feb 18 22:52:07 (none) user.info kernel: pwc Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30,
Feb 18 22:52:07 (none) user.info kernel: pwc the Creative WebCam 5, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100.
Feb 18 22:52:07 (none) user.info kernel: usb.c: registered new driver Philips webcam
Feb 18 22:52:07 (none) user.info kernel: pwc Creative Labs Webcam Pro Ex detected.
Feb 18 22:52:07 (none) user.info kernel: pwc Registered as /dev/video0.

Next, I run
# vidcat -s 640x480 -d /dev/video0 -p y > /share/hdd/data/public/test.jpg

The webcam light comes on, and I get no errors. The file shows up on the attached share drive as a 10kb jpeg file called test.jpg, but when I go to view it (in windows from a PC on the network), no picture viewer can read the file. It just shows up as a blank, dimensionless image. I've been scouring the web trying to find a discussion of this problem but haven't come up with anything. Any ideas would be greatly appreciated.

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