uvcvideo Logitech patch

Hi!

I have Logitech QuickCam Pro 9000 webcam and I had the same problems described here:

http://patchwork.kernel.org/patch/52261/

I have applied the patch and it did not help. But it helped when I increased UVC_CTRL_CONTROL_TIMEOUT to 1000 and UVC_CTRL_STREAMING_TIMEOUT 5000. So 300 and 3000 values were not enough. I do not know if it was really necessary to increase UVC_CTRL_CONTROL_TIMEOUT or if it would be enough something between 3000 and 5000 for UVC_CTRL_STREAMING_TIMEOUT as I did not have more time to test it.

So maybe 5000 would be a good default for UVC_CTRL_STREAMING_TIMEOUT?

I have been doing this on 2.6.30 amd64 system.

Just to let you know. And thanks for the patch.

Mitar

Quoted 15 lines · On Tuesday 15 December 2009 20:03:36 Mitar wrote:

Hi!

I have Logitech QuickCam Pro 9000 webcam and I had the same problems described here:

http://patchwork.kernel.org/patch/52261/

I have applied the patch and it did not help. But it helped when I increased UVC_CTRL_CONTROL_TIMEOUT to 1000 and UVC_CTRL_STREAMING_TIMEOUT 5000. So 300 and 3000 values were not enough.
I do not know if it was really necessary to increase UVC_CTRL_CONTROL_TIMEOUT or if it would be enough something between 3000 and 5000 for UVC_CTRL_STREAMING_TIMEOUT as I did not have more time to test it.

Quoted 1 line

So maybe 5000 would be a good default for UVC_CTRL_STREAMING_TIMEOUT?

Could be, but I'd like to know if increasing the control streaming timeout is required as well.

Hi!

Quoted 2 lines

Could be, but I'd like to know if increasing the control streaming timeout is required as well.

I had some time now and have tested it and it is enough just to increase UVC_CTRL_STREAMING_TIMEOUT to 5000, I left UVC_CTRL_CONTROL_TIMEOUT at
300. And everything seems to work.