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- # plugging in the webcam
- [ 4769.131238] usb 3-4: new full-speed USB device number 13 using xhci_hcd
- [ 4769.284890] usb 3-4: config 1 interface 0 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284913] usb 3-4: config 1 interface 0 altsetting 2 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284922] usb 3-4: config 1 interface 0 altsetting 3 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284923] usb 3-4: config 1 interface 0 altsetting 4 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284924] usb 3-4: config 1 interface 0 altsetting 5 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284925] usb 3-4: config 1 interface 0 altsetting 6 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284926] usb 3-4: config 1 interface 0 altsetting 7 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284926] usb 3-4: config 1 interface 0 altsetting 8 endpoint 0x6 has invalid wMaxPacketSize 0
- [ 4769.284929] usb 3-4: New USB device found, idVendor=093a, idProduct=2622, bcdDevice= 1.00
- [ 4769.284931] usb 3-4: New USB device strings: Mfr=0, Product=0, SerialNumber=0
- [ 4769.287854] gspca_main: gspca_pac7302-2.14.0 probing 093a:2622
- [ 4769.288066] input: gspca_pac7302 as /devices/pci0000:00/0000:00:14.0/usb3/3-4/input/input32
- # lsusb
- Bus 003 Device 013: ID 093a:2622 Pixart Imaging, Inc. Webcam Genius
- # plugging out the webcam
- [ 4858.190094] usb 3-4: USB disconnect, device number 13
- [ 4858.190407] usb 3-4: cannot submit urb (err = -19)
- [ 4858.194560] usb 3-4: cannot submit urb 0, error -19: no device
- # guvcview -d /dev/video2
- GUVCVIEW: version 2.0.7
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
- V4L2_CORE: failed to subscribe events for control 0x0098090c: Invalid argument
- V4L2_CORE: failed to subscribe events for control 0x00980910: Invalid argument
- ALSA lib pcm_dsnoop.c:601:(snd_pcm_dsnoop_open) unable to open slave
- ALSA lib pcm_dmix.c:1032:(snd_pcm_dmix_open) unable to open slave
- ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
- ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
- ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
- Cannot connect to server socket err = No such file or directory
- Cannot connect to server request channel
- jack server is not running or cannot be started
- JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
- JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
- Cannot connect to server socket err = No such file or directory
- Cannot connect to server request channel
- jack server is not running or cannot be started
- JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
- JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
- ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
- ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
- ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
- ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
- ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
- ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
- ALSA lib pcm_dmix.c:1032:(snd_pcm_dmix_open) unable to open slave
- Cannot connect to server socket err = No such file or directory
- Cannot connect to server request channel
- jack server is not running or cannot be started
- JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
- JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
- V4L2_CORE: V4L2_CAP_TIMEPERFRAME not supported
- control[0]:(unknown - 0x6) 0x980001 'User Controls'
- V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
- V4L2_CORE: V4L2_CAP_TIMEPERFRAME not supported
- V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
- V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
- V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
- # v4l2-ctl --list-devices
- USB Camera (093a:2622) (usb-0000:00:14.0-1):
- /dev/video2
- ACER HD User Facing: ACER HD Us (usb-0000:00:14.0-6):
- /dev/video0
- /dev/video1
- /dev/media0
- # v4l2-ctl --all
- Driver Info:
- Driver name : uvcvideo
- Card type : ACER HD User Facing: ACER HD Us
- Bus info : usb-0000:00:14.0-6
- Driver version : 5.15.74
- Capabilities : 0x84a00001
- Video Capture
- Metadata Capture
- Streaming
- Extended Pix Format
- Device Capabilities
- Device Caps : 0x04200001
- Video Capture
- Streaming
- Extended Pix Format
- Media Driver Info:
- Driver name : uvcvideo
- Model : ACER HD User Facing: ACER HD Us
- Serial : 01.00.00
- Bus info : usb-0000:00:14.0-6
- Media version : 5.15.74
- Hardware revision: 0x00000004 (4)
- Driver version : 5.15.74
- Interface Info:
- ID : 0x03000002
- Type : V4L Video
- Entity Info:
- ID : 0x00000001 (1)
- Name : ACER HD User Facing: ACER HD Us
- Function : V4L2 I/O
- Flags : default
- Pad 0x01000007 : 0: Sink
- Link 0x02000013: from remote pad 0x100000a of entity 'Extension 4' (Video Pixel Formatter): Data, Enabled, Immutable
- Priority: 2
- Video input : 0 (Camera 1: ok)
- Format Video Capture:
- Width/Height : 1280/720
- Pixel Format : 'MJPG' (Motion-JPEG)
- Field : None
- Bytes per Line : 0
- Size Image : 1843200
- Colorspace : sRGB
- Transfer Function : Rec. 709
- YCbCr/HSV Encoding: ITU-R 601
- Quantization : Default (maps to Full Range)
- Flags :
- Crop Capability Video Capture:
- Bounds : Left 0, Top 0, Width 1280, Height 720
- Default : Left 0, Top 0, Width 1280, Height 720
- Pixel Aspect: 1/1
- Selection Video Capture: crop_default, Left 0, Top 0, Width 1280, Height 720, Flags:
- Selection Video Capture: crop_bounds, Left 0, Top 0, Width 1280, Height 720, Flags:
- Streaming Parameters Video Capture:
- Capabilities : timeperframe
- Frames per second: 30.000 (30/1)
- Read buffers : 0
- brightness 0x00980900 (int) : min=0 max=255 step=1 default=128 value=128
- contrast 0x00980901 (int) : min=0 max=100 step=1 default=32 value=32
- saturation 0x00980902 (int) : min=0 max=100 step=1 default=64 value=64
- hue 0x00980903 (int) : min=-180 max=180 step=1 default=0 value=0
- white_balance_temperature_auto 0x0098090c (bool) : default=1 value=1
- gamma 0x00980910 (int) : min=90 max=150 step=1 default=120 value=120
- power_line_frequency 0x00980918 (menu) : min=0 max=2 default=1 value=1 (50 Hz)
- 0: Disabled
- 1: 50 Hz
- 2: 60 Hz
- white_balance_temperature 0x0098091a (int) : min=2800 max=6500 step=1 default=4600 value=4600 flags=inactive
- sharpness 0x0098091b (int) : min=0 max=7 step=1 default=3 value=3
- backlight_compensation 0x0098091c (int) : min=0 max=2 step=1 default=1 value=1
- exposure_auto 0x009a0901 (menu) : min=0 max=3 default=3 value=3 (Aperture Priority Mode)
- 1: Manual Mode
- 3: Aperture Priority Mode
- exposure_absolute 0x009a0902 (int) : min=2 max=1250 step=1 default=156 value=156 flags=inactive
- exposure_auto_priority 0x009a0903 (bool) : default=0 value=0
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