Bug 12180

I tested this webcam using openSUSE 11.0 with pre-compiled kernel 2.6.25.18 and self-compiled vanilla 2.6.28-rc6. It doesn't work in any, following information comes from 2.6.28-rc6:


Loading module:
# modprobe sn9c102 debug=3 && dmesg | tail
sn9c102: V4L2 driver for SN9C1xx PC Camera Controllers v1:1.47pre49
usb 3-2: SN9C10[12] PC Camera Controller detected (vid:pid 0x0C45:0x600D)
usb 3-2: [sn9c102_i2c_try_raw_write:468] I2C write failed for MT9V111 image sensor
usb 3-2: PAS106B image sensor detected
usb 3-2: [sn9c102_usb_probe:3313] Support for PAS106B maintained by Luca Risolia <luca.risolia@studio.unibo.it>
usb 3-2: [sn9c102_init:1686] Uncompressed video format is active
usb 3-2: [sn9c102_init:1707] Image sensor supports 'exposure' control
usb 3-2: [sn9c102_init:1707] Image sensor supports 'global gain' control
usb 3-2: [sn9c102_init:1707] Image sensor supports 'contrast' control
usb 3-2: [sn9c102_init:1707] Image sensor supports 'red balance' control
usb 3-2: [sn9c102_init:1707] Image sensor supports 'blue balance' control
usb 3-2: [sn9c102_init:1707] Image sensor supports 'green balance' control
usb 3-2: [sn9c102_init:1707] Image sensor supports 'DAC magnitude' control
usb 3-2: Initialization succeeded
usb 3-2: V4L2 device registered as /dev/video1
usb 3-2: Optional device control through 'sysfs' interface disabled
usb 3-2: [sn9c102_usb_probe:3370] Compile the kernel with the 'CONFIG_VIDEO_ADV_DEBUG' configuration option to enable it.
usbcore: registered new interface driver sn9c102
usb 3-2: [sn9c102_open:1848] Video device /dev/video1 is open
sn9c102: VIDIOC_QUERYCAP<7>sn9c102: VIDIOCGCAP<6>usb 3-2: [sn9c102_release:1873] Video device /dev/video1 closed


I try play video:
> mplayer -vo x11 tv:// -tv device=/dev/video1
MPlayer dev-SVN-r27937-4.3 (C) 2000-2008 MPlayer Team
CPU: Intel(R) Core(TM)2 Duo CPU     P8400  @ 2.26GHz (Family: 6, Model: 23, Stepping: 6)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing tv://.
TV file format detected.
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski@zpr.uni-koeln.de>
 comment: first try, more to come ;-)
v4l2: your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.
Selected device: SN9C1xx PC Camera
 Capabilites:  video capture  read/write  streaming
 supported norms:
 inputs: 0 = Camera;
 Current input: 0
 Current format: unknown (0x31384142)
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Invalid argument
Error: Cannot set norm!
Selected input hasn't got a tuner!
v4l2: Cannot get fps
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
==========================================================================
Cannot find codec matching selected -vo and video format 0x31384142.
Read DOCS/HTML/en/codecs.html!
==========================================================================

v4l2: ioctl set mute failed: Invalid argument
v4l2: 0 frames successfully processed, 0 frames dropped.

Exiting... (End of file)


Check what appears after using mplayer:
> dmesg | tail
usb 3-2: [sn9c102_open:1848] Video device /dev/video1 is open
sn9c102: VIDIOC_QUERYCAP<7>sn9c102: VIDIOC_G_FMT<7>sn9c102: VIDIOC_G_STD<7>sn9c102: VIDIOC_G_PARM<7>sn9c102: VIDIOC_ENUMSTD<7>sn9c102: VIDIOC_ENUMINPUT<7>sn9c102: VIDIOC_ENUMINPUT<7>sn9c102: VIDIOC_G_INPUT<7>sn9c102: VIDIOC_ENUM_FMT<7>sn9c102: VIDIOC_ENUM_FMT<7>sn9c102: VIDIOC_ENUM_FMT<7>sn9c102: VIDIOC_G_FMT<7>sn9c102: VIDIOC_S_FMT<7>sn9c102: VIDIOC_G_FMT<7>sn9c102: VIDIOC_S_FMT<7>sn9c102: VIDIOC_ENUMINPUT<7>sn9c102: VIDIOC_S_INPUT<7>sn9c102: VIDIOC_ENUMSTD<7>sn9c102: VIDIOC_ENUMSTD<7>sn9c102: VIDIOC_G_FMT<7>sn9c102: VIDIOC_G_FMT<7>sn9c102: VIDIOC_G_FMT<7>sn9c102: VIDIOC_REQBUFS<7>sn9c102: VIDIOC_QUERYBUF<7>sn9c102: VIDIOC_QBUF<7>sn9c102: VIDIOC_QUERYBUF<7>sn9c102: VIDIOC_QBUF<7>sn9c102: VIDIOC_S_CTRL<7>sn9c102: VIDIOC_QUERYCTRL<7>sn9c102: VIDIOC_QUERYCTRL<7>sn9c102: VIDIOC_QUERYCTRL<7>sn9c102: VIDIOC_QUERYCTRL<7>sn9c102: VIDIOC_S_CTRL<7>sn9c102: VIDIOC_S_CTRL<6>usb 3-2: [sn9c102_release:1873] Video device /dev/video1 closed


> xawtv -hwscan
This is xawtv-3.95, running on Linux/x86_64 (2.6.28-rc6-bl)
looking for available devices
/dev/video0: OK                         [ -device /dev/video0 ]
    type : v4l2
    name : UVC Camera (05ca:183d)
    flags:  capture

/dev/video1: OK                         [ -device /dev/video1 ]
    type : v4l2
    name : SN9C1xx PC Camera
    flags:  capture


xawtv also doesn't work (black picture only):
> xawtv -c /dev/video1
This is xawtv-3.95, running on Linux/x86_64 (2.6.28-rc6-bl)
xinerama 0: 1600x900+0+0
WARNING: No DGA support available for this display.
/dev/video1 [v4l2]: no overlay support
v4l-conf had some trouble, trying to continue anyway
ioctl: VIDIOC_G_STD(std=0x7fff9cbea9c4 [PAL_G,PAL_D1,PAL_K,PAL_M,PAL_60,NTSC_M_JP,?,SECAM_D,SECAM_G,SECAM_H,SECAM_K,SECAM_K1,?ATSC_8_VSB,(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)]): Zły argument
ioctl: VIDIOC_S_CTRL(id=9963777;value=0): Zły argument
ioctl: VIDIOC_S_STD(std=0x0 []): Zły argument


Is there some additional info I could provide to help fix problem with this webcam?