Hello,
Here goes:
This is the default dmesg:
[13927.704305] usb 17-3: new high speed USB device using xhci_hcd and address 0
[13927.938697] xhci_hcd 0000:03:00.0: WARN: short transfer on control ep
[13927.941687] xhci_hcd 0000:03:00.0: WARN: short transfer on control ep
[13927.942584] usb 17-3: ep 0x87 - rounding interval to 128 microframes
[13927.943287] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
[13928.040986] input: UVC Camera (046d:0825) as
/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/usb17/17-3/17-3:1.0/input/input9
[13928.041323] usb 17-3: ep 0x86 - rounding interval to 8 microframes
[13929.036720] 2:3:1: cannot set freq 16000 to ep 0x86
[13929.036739] usb 17-3: ep 0x86 - rounding interval to 8 microframes
[13929.176933] usb 17-3: ep 0x86 - rounding interval to 8 microframes
[13929.181913] usb 17-3: ep 0x86 - rounding interval to 8 microframes
To increase the verbosity I used the following commands and then
plugged the camera into the USB3 port again, dmesg now shows more
information....
rmmod uvcvideo
modprobe uvcvideo quirks=2 trace=65535
[14590.335099] usb 17-3: new high speed USB device using xhci_hcd and address 0
[14590.569652] xhci_hcd 0000:03:00.0: WARN: short transfer on control ep
[14590.572641] xhci_hcd 0000:03:00.0: WARN: short transfer on control ep
[14590.573570] usb 17-3: ep 0x87 - rounding interval to 128 microframes
[14590.574224] uvcvideo: Probing generic UVC device 3
[14590.574238] uvcvideo: Found format YUV 4:2:2 (YUYV).
[14590.574244] uvcvideo: - 640x480 (30.0 fps)
[14590.574249] uvcvideo: - 160x120 (30.0 fps)
[14590.574253] uvcvideo: - 176x144 (30.0 fps)
[14590.574258] uvcvideo: - 320x176 (30.0 fps)
[14590.574263] uvcvideo: - 320x240 (30.0 fps)
[14590.574268] uvcvideo: - 352x288 (30.0 fps)
[14590.574272] uvcvideo: - 432x240 (30.0 fps)
[14590.574277] uvcvideo: - 544x288 (30.0 fps)
[14590.574282] uvcvideo: - 640x360 (30.0 fps)
[14590.574286] uvcvideo: - 752x416 (25.0 fps)
[14590.574291] uvcvideo: - 800x448 (25.0 fps)
[14590.574296] uvcvideo: - 800x600 (20.0 fps)
[14590.574301] uvcvideo: - 864x480 (20.0 fps)
[14590.574305] uvcvideo: - 960x544 (15.0 fps)
[14590.574310] uvcvideo: - 960x720 (10.0 fps)
[14590.574315] uvcvideo: - 1024x576 (10.0 fps)
[14590.574319] uvcvideo: - 1184x656 (10.0 fps)
[14590.574324] uvcvideo: - 1280x720 (10.0 fps)
[14590.574329] uvcvideo: - 1280x960 (5.0 fps)
[14590.574333] uvcvideo: Found format MJPEG.
[14590.574338] uvcvideo: - 640x480 (30.0 fps)
[14590.574343] uvcvideo: - 160x120 (30.0 fps)
[14590.574347] uvcvideo: - 176x144 (30.0 fps)
[14590.574352] uvcvideo: - 320x176 (30.0 fps)
[14590.574357] uvcvideo: - 320x240 (30.0 fps)
[14590.574362] uvcvideo: - 352x288 (30.0 fps)
[14590.574366] uvcvideo: - 432x240 (30.0 fps)
[14590.574371] uvcvideo: - 544x288 (30.0 fps)
[14590.574375] uvcvideo: - 640x360 (30.0 fps)
[14590.574380] uvcvideo: - 752x416 (30.0 fps)
[14590.574385] uvcvideo: - 800x448 (30.0 fps)
[14590.574390] uvcvideo: - 800x600 (30.0 fps)
[14590.574394] uvcvideo: - 864x480 (30.0 fps)
[14590.574399] uvcvideo: - 960x544 (30.0 fps)
[14590.574403] uvcvideo: - 960x720 (30.0 fps)
[14590.574408] uvcvideo: - 1024x576 (30.0 fps)
[14590.574413] uvcvideo: - 1184x656 (30.0 fps)
[14590.574418] uvcvideo: - 1280x720 (30.0 fps)
[14590.574422] uvcvideo: - 1280x960 (30.0 fps)
[14590.574435] uvcvideo: Found a Status endpoint (addr 87).
[14590.574441] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
[14590.574446] uvcvideo: Forcing device quirks to 0x2 by module
parameter for testing purpose.
[14590.574451] uvcvideo: Please report required quirks to the
linux-uvc-devel mailing list.
[14590.574463] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/2 to device 3 entity 2
[14590.574471] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/3 to device 3 entity 2
[14590.574478] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/7 to device 3 entity 2
[14590.574485] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/8 to device 3 entity 2
[14590.574493] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/10 to device 3 entity 2
[14590.574500] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/1 to device 3 entity 2
[14590.574507] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/4 to device 3 entity 2
[14590.574514] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/5 to device 3 entity 2
[14590.574522] uvcvideo: Added control
00000000-0000-0000-0000-000000000101/11 to device 3 entity 2
[14590.574532] uvcvideo: Added control
00000000-0000-0000-0000-000000000001/2 to device 3 entity 1
[14590.574539] uvcvideo: Added control
00000000-0000-0000-0000-000000000001/3 to device 3 entity 1
[14590.574546] uvcvideo: Added control
00000000-0000-0000-0000-000000000001/4 to device 3 entity 1
[14590.574558] uvcvideo: Scanning UVC chain: OT 5 <- XU 4 (-> XU 6 XU
7) <- PU 2 (-> XU 3) <- IT 1
[14590.574579] uvcvideo: Found a valid video chain (1 -> 5).
[14590.672417] input: UVC Camera (046d:0825) as
/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/usb17/17-3/17-3:1.0/input/input12
[14590.672475] uvcvideo: UVC device initialized.
[14590.672658] usb 17-3: ep 0x86 - rounding interval to 8 microframes
[14590.675498] uvcvideo: uvc_v4l2_open
[14590.675521] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QUERYCAP)
[14590.675576] uvcvideo: uvc_v4l2_release
[14591.668045] 2:3:1: cannot set freq 16000 to ep 0x86
[14591.668066] usb 17-3: ep 0x86 - rounding interval to 8 microframes
[14591.808261] usb 17-3: ep 0x86 - rounding interval to 8 microframes
[14591.813345] usb 17-3: ep 0x86 - rounding interval to 8 microframes
Thanks, in advance for your assistance.
Cheers,
Neil
On Thu, Nov 18, 2010 at 3:00 PM, Paulo Assis <pj.as...@gmail.com> wrote:
> Neil Hi,
>
> Could you please post the relevant dmesg output.
> Increasing uvcvideo verbosity would also be a good help.
>
>
> --- snip ---
>> libv4lconvert: warning more framesizes then I can handle!
>> libv4lconvert: warning more framesizes then I can handle!
> --- snip ---
>
> No problem with this, libv4l only handles a limit number of
> resolutions when enumerating video formats (apparently the limit is
> rather low for the current uvc camera models).
>
>> libv4l2: error turning on stream: Invalid argument
>> Unable to start capture: Invalid argument
>
> This seems to be the problem, but you need to check dmesg for the
> cause of the invalid argument error.
> Most likely this is related to the usb core and not to the driver
> itself, but it's hard to say without more info.
>
> Best regards,
> Paulo
>
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