On Fr, 2011-04-22 at 11:46 +0200, Laurent Pinchart wrote:
> Hi Alexey,
>
> On Tuesday 29 March 2011 13:48:02 Alexey Fisher wrote:
> > The camera requires the UVC_QUIRK_RESTRICT_FRAME_RATE quirk.
>
> According to Benson, the camera seems to work at 30, 25 and 20 fps (I'm
> waiting for confirmation on that). Isn't it a bit restrictive to disable all
> frame rates except 30fps ? Allowing specific frame rates would be more
> complex
> though, I suppose we can live with 30fps only.
I assume this cam is in aperture priority mode and send frames according
the light. So if we will trigger this bug, he need to try 20-30 fps with
max light. Say with flashlight pointing to the cam.
> > Reported-by: Benson Bear <benson.b...@gmail.com>
> > Signed-off-by: Alexey Fisher <bug-tr...@fisher-privat.net>
> > ---
> > drivers/media/video/uvc/uvc_driver.c | 11 +++++++++++
> > 1 files changed, 11 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/media/video/uvc/uvc_driver.c
> > b/drivers/media/video/uvc/uvc_driver.c index 0baa464..f8a1579 100644
> > --- a/drivers/media/video/uvc/uvc_driver.c
> > +++ b/drivers/media/video/uvc/uvc_driver.c
> > @@ -1970,6 +1970,17 @@ MODULE_PARM_DESC(timeout, "Streaming control
> > requests timeout"); * though they are compliant.
> > */
> > static struct usb_device_id uvc_ids[] = {
> > + /* Creative VF0700 Live! Cam Chat HD.
> > + * Produce more frames als commited,
> > + * so it partially overwrite buffer with new frame */
> > + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
> > + | USB_DEVICE_ID_MATCH_INT_INFO,
> > + .idVendor = 0x041e,
> > + .idProduct = 0x4088,
> > + .bInterfaceClass = USB_CLASS_VIDEO,
> > + .bInterfaceSubClass = 1,
> > + .bInterfaceProtocol = 0,
> > + .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE },
> > /* Genius eFace 2025 */
> > { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
> >
> > | USB_DEVICE_ID_MATCH_INT_INFO,
>
--
Regards,
Alexey
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