V4L: "cat /dev/video0: no such device"; to be sure not supported?
Where is the best place to get help getting Video for Linux (V4L) working for my USB webcam? (ALI M5603C)
I think the driver may be under development at the moment but how can I be sure with device nodes? How can I be sure that I've got everything right and that the device node is not there simply because it isn't supported? see here
I can create the device nodes but it says `device not found`. I have no /dev/v4l or /dev/video* without me making them.
By typing ls -l /dev/video*. You should see the permissions and the major and minor. Some distributions have an symbolic link from /dev/video0...254 to /dev/v4l/video0...254. The major and minor should be for /dev/video0 is 81 for the major and 0 for the minor. The device type should be character for the device node. This is explained in devices.txt in the kernel documentation directory.
To make /dev/video0....254 to be used, you need videodev, v4l2-common (optional if the module needs it), and v4l1-compat (optional if running v4l2-common). You should see the directory video in /proc after you load videodev.
Your web cam will not capture frames fast enough because your USB speed is 12 Mbits designated by SPD from the information gathered at /prov/bus/usb/devices.
If you can not get it working, I suggest using a PCI video capture card because it is better than web cams and you can do a lot with them than a web cam.
|All times are GMT -5. The time now is 11:09 PM.|