Hi Johannes,
On Monday 05 July 2010 10:15:53 Johannes Berg wrote:
> On Mon, 2010-07-05 at 09:28 +0200, Laurent Pinchart wrote:
> > Hi Johannes,
> >
> > On Friday 02 July 2010 09:26:15 Johannes Berg wrote:
> > > On Wed, 2010-06-30 at 23:11 +0200, Johannes Berg wrote:
> > > > I'm pretty sure this was a regression in .34, but haven't checked
> > > > right now, can bisect when I find time but wanted to inquire first
> > > > if somebody had ideas. All I get is:
> > > >
> > > > [57372.078968] uvcvideo: Failed to query (130) UVC control 5 (unit 3)
> > > > : -32 (exp. 1).
> >
> > Does it prevent your camera from working, or does it "just" print
> > annoying messages to the kernel log ?
>
> It prevents it from working, and it's the only error message since the
> tool/driver/libv4l/whatever just gives up after getting -EIO.
>
> lsusb -v is:
[snip]
Thanks.
> PS: I'll be on vacation until Saturday starting right now.
Could you please test the following patch when you will have time ?
diff --git a/drivers/media/video/uvc/uvc_ctrl.c
b/drivers/media/video/uvc/uvc_ctrl.c
index 9af4d47..a350fad 100644
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -122,8 +122,8 @@ static struct uvc_control_info uvc_ctrls[] = {
.selector = UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
.index = 10,
.size = 1,
- .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
- | UVC_CONTROL_RESTORE,
+ .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
+ | UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
},
{
.entity = UVC_GUID_UVC_PROCESSING,
--
Regards,
Laurent Pinchart
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