On Wed, Oct 7, 2009 at 2:59 PM, Ondrej Zary <[email protected]>wrote:
> [snip] > > What was the change that supposedly broke this in 2.6.22? > > I discovered that it's not related to usb audio at all. Doing "rmmod > uvcvideo" > and "modprobe uvcvideo" repeatedly succeeded after a couple of tries. > Increasing > UVC_CTRL_STREAMING_TIMEOUT to 3000 helped (2000 was not enough). > > > Increase UVC_CTRL_STREAMING_TIMEOUT to fix initialization of > Logitech Quickcam for Notebooks Pro. > This fixes following error messages: > uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling > workaround. > uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). > uvcvideo: Failed to initialize the device (-5). > > Signed-off-by: Ondrej Zary <[email protected]> > > --- linux-2.6.31-orig/drivers/media/video/uvc/uvcvideo.h 2009-09-10 > 00:13:59.000000000 +0200 > +++ linux-2.6.31/drivers/media/video/uvc/uvcvideo.h 2009-10-07 > 13:47:27.000000000 +0200 > @@ -304,7 +304,7 @@ > #define UVC_MAX_STATUS_SIZE 16 > > #define UVC_CTRL_CONTROL_TIMEOUT 300 > -#define UVC_CTRL_STREAMING_TIMEOUT 1000 > +#define UVC_CTRL_STREAMING_TIMEOUT 3000 > > /* Devices quirks */ > #define UVC_QUIRK_STATUS_INTERVAL 0x00000001 > > > -- > Ondrej Zary > Could this kind of fix also be useful in my case with Omnivision oem in Dell sp2208wfp monitor, in your opinion? See thread https://lists.berlios.de/pipermail/linux-uvc-devel/2008-February/003076.html incidentally at that time I was using Fedora 8 32bit with kernel 2.6.23.15-137.fc8 that indeed is post 2.6.22.... thanks, Gianluca
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