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Old 12-29-2010, 11:49 AM   #1
MODYSAMA
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Question Genius FaceCam 312 + kubuntu 10.10 setup configuration help


I use Genius FaceCam 312 doesn't correctly work on Kubuntu 10.10.
Once trying skype test camera (or Kopete) or guvcview the camera's led lights for a seconds and turned off without any response no output is appeared.
- However, that camera is supported for linux kernel 2.6.21 above and my linux is 2.6.36..
- I tried to fix the bandwidth by the following two commands but no new:
sudo rmmod uvcvideo
sudo modprobe uvcvideo quirks=128

for a more permanent fix I created the following file:
/etc/modprobe.d/uvcvideo.conf
and I add the following line:
options uvcvideo quirks=128

***cheese"terminal result":
Quote:
modysama@ubuntu:~$ cheese
libv4l2: error turning on stream: No space left on device
***guvcview"terminal result":
[QUOTE]
Code:
guvcview 1.4.1
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
video device: /dev/video1 
/dev/video0 - device 1
/dev/video1 - device 2
Init. FaceCam 312 (location: usb-0000:00:1d.0-1.2)
{ pixelformat = 'MJPG', description = 'MJPEG' }
{ discrete: width = 640, height = 480 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 320, height = 240 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 160, height = 120 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 176, height = 144 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 352, height = 288 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 320, height = 240 }
        Time interval between frame: 1/5, 
{ discrete: width = 160, height = 120 }
        Time interval between frame: 1/20, 
{ discrete: width = 176, height = 144 }
        Time interval between frame: 1/15, 
{ discrete: width = 352, height = 288 }
        Time interval between frame: 1/4, 
{ pixelformat = 'RGB3', description = 'RGB3' }
{ discrete: width = 640, height = 480 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 320, height = 240 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 160, height = 120 }
        Time interval between frame: 1/20, 
{ discrete: width = 176, height = 144 }
        Time interval between frame: 1/15, 
{ discrete: width = 352, height = 288 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ pixelformat = 'BGR3', description = 'BGR3' }
{ discrete: width = 640, height = 480 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 320, height = 240 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 160, height = 120 }
        Time interval between frame: 1/20, 
{ discrete: width = 176, height = 144 }
        Time interval between frame: 1/15, 
{ discrete: width = 352, height = 288 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ pixelformat = 'YU12', description = 'YU12' }
{ discrete: width = 640, height = 480 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 320, height = 240 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 160, height = 120 }
        Time interval between frame: 1/20, 
{ discrete: width = 176, height = 144 }
        Time interval between frame: 1/15, 
{ discrete: width = 352, height = 288 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ pixelformat = 'YV12', description = 'YV12' }
{ discrete: width = 640, height = 480 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 320, height = 240 }
        Time interval between frame: 1/30, 1/15, 1/1, 
{ discrete: width = 160, height = 120 }
        Time interval between frame: 1/20, 
{ discrete: width = 176, height = 144 }
        Time interval between frame: 1/15, 
{ discrete: width = 352, height = 288 }
        Time interval between frame: 1/30, 1/15, 1/1, 
vid:0458 
pid:7076 
driver:uvcvideo
checking format: 1196444237
VIDIOC_G_COMP:: Invalid argument
   compression control not supported
fps is set to 1/30
drawing controls

libv4l2: error turning on stream: No space left on device
VIDIOC_STREAMON - Unable to start capture: No space left on device
fps is set to 1/30
libv4l2: error turning on stream: Device or resource busy
VIDIOC_STREAMON - Unable to start capture: Device or resource busy
libv4l2: error turning on stream: Device or resource busy
VIDIOC_STREAMON - Unable to start capture: Device or resource busy
Keeping in mind, I tested that camera on an older version but it worked out of box.
Is there any help,please.I would be grateful.

Last edited by MODYSAMA; 01-14-2011 at 08:55 AM. Reason: improvement and to be more attracting Edit: <Mod>Improve title
 
Old 12-30-2010, 06:21 AM   #2
catkin
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Welcome to LQ

Please use descriptive titles; they are more likely to attract subject matter experts and it saves the rest of us having to check the question to see if we can answer it. A good title would include Genius FaceCam 312.
 
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Old 12-30-2010, 02:40 PM   #3
no2498
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type webcam in a terminal click enter
it loads a cam graber

it may or my not help

you can also test the cam this way

click system, preferences
go down the list to multimedia systems selector, start it click video
try v4l and v4l2 click the bottom test button for each 1
 
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Old 12-30-2010, 05:12 PM   #4
thorkelljarl
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Details...

What are the webcam ID numbers? If you don't know, use the command "lsusb" and post back the results. The line noting the webcam might make it easy by mentioning Genius.
 
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Old 12-31-2010, 12:26 PM   #5
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Thanks for the advice and thanks for being with me.

The results:
modysama@ubuntu:~$ webcam
reading config file: /home/modysama/.webcamrc
video4linux webcam v1.5 - (c) 1998-2002 Gerd Knorr
grabber config:
size 320x240 [none]
input (null), norm (null), jpeg quality 75
rotate=0, top=0, left=0, bottom=240, right=320
I think that give me an information about the embedded camera of my labtop!

Quote:
modysama@ubuntu:~$ lsusb
Bus 002 Device 005: ID 0458:7076 KYE Systems Corp. (Mouse Systems)
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 04b3:3107 IBM Corp. ThinkPad 800dpi Optical Travel Mouse
Bus 001 Device 004: ID 05c8:0403 Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 001 Device 003: ID 03f0:231d Hewlett-Packard
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
modysama@ubuntu:~$

Last edited by MODYSAMA; 01-14-2011 at 08:47 AM.
 
Old 01-01-2011, 08:29 PM   #6
thorkelljarl
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A quick fix...

Have you tried to boot linux without the webcam and to hot plug it, or boot with it, unmount and remove it, then hot plug it?

I'll take a guess. Have you looked at the results of the command "v4l-info" in case it tells you something new? You might be able to edit the /dev/video file that it reads. Is there another installation or a live-cd(10.04?) that boots this webcam and that would produce a /dev/video file you could compare and copy?

I found this in the specification of the 312, and they compare with some but not all results of "guvcvue" that you listed. There are only two resolutions for video.

Quote:
# Video Capture 640 x 480,
352 x 288
# Still Image JPEG - 320 x 240,
640 x 480,
352 x 288,
176 x 144,
160 x 120

Last edited by thorkelljarl; 01-01-2011 at 09:01 PM.
 
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Old 01-02-2011, 11:02 AM   #7
MODYSAMA
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Question

Really very grateful for everyone reply ..
Thank you!

I wish every one reply my post continue checking my posts because I am in need to help as soon as possible.

** thorkelljarl: Thank you.
As I cleared I am "just an interesting beginner"

Please:
- How is unmount?
- what do you mean by hot-plugging?
-
***************************************************************
* You might be able to edit the /dev/video file that it reads.*
***************************************************************
I can't understand that


Is there another installation or a live-cd(10.04?) Actully I don't know how can I check that..!
Please provide me in more details,sir.
 
Old 01-02-2011, 07:07 PM   #8
MODYSAMA
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Quote:
Code:
modysama@ubuntu:~$ dmesg | grep video
[    1.072354] pci 0000:01:00.0: Boot video device
[   16.828371] Linux video capture interface: v2.00
[   16.855169] uvcvideo: Found UVC 1.00 device HP Webcam [2 MP Fixed] (05c8:0403)
[   16.855173] uvcvideo: Forcing device quirks to 0x80 by module parameter for testing purpose.
[   16.855176] uvcvideo: Please report required quirks to the linux-uvc-devel mailing list.
[   16.872704] usbcore: registered new interface driver uvcvideo
[  645.219163] uvcvideo: Found UVC 1.00 device FaceCam 312 (0458:7076)
[  645.219169] uvcvideo: Forcing device quirks to 0x80 by module parameter for testing purpose.
[  645.219175] uvcvideo: Please report required quirks to the linux-uvc-devel mailing list.
[  661.755987] uvcvideo: Failed to submit URB 0 (-28).
[  665.638474] uvcvideo: Failed to submit URB 0 (-28).
[  669.394923] uvcvideo: Failed to submit URB 0 (-28).
[  685.515586] uvcvideo: Failed to submit URB 0 (-28).
[ 1481.612178] uvcvideo: Failed to submit URB 0 (-28).
[ 1500.938069] uvcvideo: Failed to submit URB 0 (-28).
[ 1504.605183] uvcvideo: Failed to submit URB 0 (-28).
[ 1806.297974] uvcvideo: Failed to submit URB 0 (-28).
[ 2135.434620] uvcvideo: Failed to submit URB 0 (-28).
[ 7667.769636] uvcvideo: Failed to submit URB 0 (-28).
[ 7671.844673] uvcvideo: Failed to submit URB 0 (-28).
[ 8431.580540] uvcvideo: Failed to submit URB 0 (-28).
[ 8443.404832] uvcvideo: Failed to submit URB 0 (-28).
[12659.793266] uvcvideo: Found UVC 1.00 device FaceCam 312 (0458:7076)
[12659.793273] uvcvideo: Forcing device quirks to 0x80 by module parameter for testing purpose.
[12659.793278] uvcvideo: Please report required quirks to the linux-uvc-devel mailing list.
[13083.417260] uvcvideo: Found UVC 1.00 device FaceCam 312 (0458:7076)
[13083.417267] uvcvideo: Forcing device quirks to 0x80 by module parameter for testing purpose.
[13083.417272] uvcvideo: Please report required quirks to the linux-uvc-devel mailing list.
[13083.451097] uvcvideo: Failed to query (135) UVC control 3 (unit 3) : -32 (exp. 2).
[13083.454342] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13083.457711] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13083.460952] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13083.464321] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13549.310085] uvcvideo: Found UVC 1.00 device FaceCam 312 (0458:7076)
[13549.310091] uvcvideo: Forcing device quirks to 0x80 by module parameter for testing purpose.
[13549.310096] uvcvideo: Please report required quirks to the linux-uvc-devel mailing list.
[13549.343695] uvcvideo: Failed to query (135) UVC control 3 (unit 3) : -32 (exp. 2).
[13549.347071] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13549.350441] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13549.353678] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[13549.357086] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.444474] uvcvideo: Found UVC 1.00 device FaceCam 312 (0458:7076)
[15264.444478] uvcvideo: Forcing device quirks to 0x80 by module parameter for testing purpose.
[15264.444480] uvcvideo: Please report required quirks to the linux-uvc-devel mailing list.
[15264.478638] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.481929] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.485183] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.488291] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.489039] uvcvideo: Failed to query (135) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.588381] uvcvideo: Failed to query (130) UVC control 3 (unit 3) : -32 (exp. 2).
[15264.589610] uvcvideo: Failed to query (135) UVC control 3 (unit 3) : -32 (exp. 2).
.................

Last edited by MODYSAMA; 01-14-2011 at 08:53 AM.
 
Old 01-14-2011, 09:02 AM   #9
MODYSAMA
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Arrow

Hello all,
Now i tried testing it again in guvcview it works good
BUT
It doesn't work in it's all supports resolution it works only in :

- 176 * 144
- 160 * 120
Does anybody have any clue?

Last edited by MODYSAMA; 01-17-2011 at 04:47 PM.
 
Old 01-18-2011, 01:02 PM   #10
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Can anybody suggest, what maybe the resaon of the problem?
 
Old 01-18-2011, 05:05 PM   #11
thorkelljarl
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A guess...

The resolutions that you are getting may be those that are native to the hardware. The higher resolutions listed as produced may be after an enhancement multiplier with the Windows driver. What resolution do you get running the webcam as video? Does it still not run in "cheese"?

"Hot-plug" refers to plugging the webcam into a running linux to see how linux mounts the webcam.

Did you use the command "v4l-info"?

I have a system with a BIOS that will boot a 4GB USB flash stick and have a persistent installation of linux on it(Mint 9). Can you make a persistent USB installation of that version of linux(Kubuntu?) that had this webcam working out of the box?

If the cam then works with the USB installation, you might use "v4l-info" and look at the file that the command reads from, "/dev/video" to see what is listed and compare the version with the webcam working with that without, your Kubuntu 10.10, and edit.

Is the version of the of the "uvcvideo" module in Kubuntu 10.10 the latest version?

Last edited by thorkelljarl; 01-18-2011 at 05:20 PM.
 
Old 02-03-2011, 09:00 AM   #12
MODYSAMA
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Question

Hi,
Sorry I was in an exams period.
Thanks in advance.


thorkelljarl
Quote:
sok@sok-HP-ProBook-4520s:~/microdia$ v4l-conf
v4l-conf: using X11 display :0.0
dga: version 2.0
WARNING: No DGA direct video mode for this display.
mode: 1366x768, depth=24, bpp=32, bpl=5464, base=unknown
/dev/video0 [v4l2]: no overlay support
Quote:
no video grabber device available
I recently tried the webcam on:
  • Kerenel 2.6.35-22 generic
    mini Hp laptop.
It works too out of box on every software.

Finally, I re-installed kubuntu 10.10 (2.6.35-22 generic). Problem is still.
Actually, I started to think the problem is in my laptop !
my laptop is HP probook 4520s .

Now the only different between two devices is the type.
I don't have any clue for the reson of webcam probem

please need suggestions.

Last edited by MODYSAMA; 02-03-2011 at 05:05 PM.
 
Old 02-13-2011, 01:29 PM   #13
MODYSAMA
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Code:
sok <at> sok-HP-ProBook-4520s:~$ dmesg | tail
[ 9014.027823] HP WMI: Unknown response received
[11532.813381] usb 2-1.1: new full speed USB device using ehci_hcd
and address 3
[11533.036563] uvcvideo: Found UVC 1.00 device FaceCam 312(0458:7076)
[11533.036570] uvcvideo: Forcing device quirks to 0x80 by module 
parameter-for testing purpose.
[11533.036576] uvcvideo: Please report required quirks to the
linux-uvc-devel mailing list.
[11533.051169] input: FaceCam 312 as /devices/pci0000:00/0000:00:1
d.0/usb2/2-1/2-1.1/2-1.1:1.0/input/input12
[11533.386733] usbcore: registered new interface driver snd-usb-audio
[14869.857110] HP WMI: Unknown response received
[15692.956427] show_signal_msg: 9 callbacks suppressed
[15692.956437] xawtv.bin[29033]: segfault at 0 ip 0106d770 sp bfe12bf8
error 4 in libc-2.12.1.so[ff9000+157000]
Please what is the problem ?
need help
 
Old 02-15-2011, 04:12 PM   #14
MODYSAMA
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Code:
root@sok-HP-ProBook-4520s:/home/sok# lsusb -v -d 0458:7076

Bus 002 Device 003: ID 0458:7076 KYE Systems Corp. (Mouse Systems) 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0458 KYE Systems Corp. (Mouse Systems)
  idProduct          0x7076 
  bcdDevice            0.01
  iManufacturer           1 PixArt Imaging Inc.
  iProduct                2 FaceCam 312
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          735
    bNumInterfaces          4
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass         14 Video
      bFunctionSubClass       3 Video Interface Collection
      bFunctionProtocol       0 
      iFunction               2 FaceCam 312
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      1 Video Control
      bInterfaceProtocol      0 
      iInterface              2 FaceCam 312
      VideoControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdUVC               1.00
        wTotalLength           77
        dwClockFrequency       12.000000MHz
        bInCollection           1
        baInterfaceNr( 0)       1
      VideoControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             2
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               4
        iTerminal               0 
      VideoControl Interface Descriptor:
        bLength                26
        bDescriptorType        36
        bDescriptorSubtype      6 (EXTENSION_UNIT)
        bUnitID                 4
        guidExtensionCode         {f07735d1-898d-0047-812e-7dd5e2fdb898}
        bNumControl             8
        bNrPins                 1
        baSourceID( 0)          3
        bControlSize            1
        bmControls( 0)       0xff
        iExtension              0 
      VideoControl Interface Descriptor:
        bLength                18
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Camera Sensor
        bAssocTerminal          0
        iTerminal               0 
        wObjectiveFocalLengthMin      0
        wObjectiveFocalLengthMax      0
        wOcularFocalLength            0
        bControlSize                  3
        bmControls           0x00000200
          Zoom (Absolute)
      VideoControl Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      5 (PROCESSING_UNIT)
      Warning: Descriptor too short
        bUnitID                 3
        bSourceID               1
        wMaxMultiplier          0
        bControlSize            2
        bmControls     0x0000057f
          Brightness
          Contrast
          Hue
          Saturation
          Sharpness
          Gamma
          White Balance Temperature
          Backlight Compensation
          Power Line Frequency
        iProcessing             0 
        bmVideoStandards     0x30
          NTSC - 625/50
          PAL - 525/60
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               6
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      VideoStreaming Interface Descriptor:
        bLength                            15
        bDescriptorType                    36
        bDescriptorSubtype                  1 (INPUT_HEADER)
        bNumFormats                         2
        wTotalLength                      424
        bEndPointAddress                  129
        bmInfo                              0
        bTerminalLink                       2
        bStillCaptureMethod                 2
        bTriggerSupport                     1
        bTriggerUsage                       0
        bControlSize                        1
        bmaControls( 0)                    11
        bmaControls( 1)                    11
      VideoStreaming Interface Descriptor:
        bLength                            11
        bDescriptorType                    36
        bDescriptorSubtype                  6 (FORMAT_MJPEG)
        bFormatIndex                        1
        bNumFrameDescriptors                5
        bFlags                              1
          Fixed-size samples: Yes
        bDefaultFrameIndex                  1
        bAspectRatioX                       0
        bAspectRatioY                       0
        bmInterlaceFlags                 0x00
          Interlaced stream or variable: No
          Fields per frame: 1 fields
          Field 1 first: No
          Field pattern: Field 1 only
          bCopyProtect                      0
      VideoStreaming Interface Descriptor:
        bLength                            38
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         1
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                  4915200
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  3
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666666
        dwFrameInterval( 2)          10000000
      VideoStreaming Interface Descriptor:
        bLength                            38
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                  1228800
        dwMaxBitRate                 36864000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  3
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666666
        dwFrameInterval( 2)          10000000
      VideoStreaming Interface Descriptor:
        bLength                            38
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            160
        wHeight                           120
        dwMinBitRate                   307200
        dwMaxBitRate                  9216000
        dwMaxVideoFrameBufferSize       38400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  3
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666666
        dwFrameInterval( 2)          10000000
      VideoStreaming Interface Descriptor:
        bLength                            38
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            176
        wHeight                           144
        dwMinBitRate                   405504
        dwMaxBitRate                 12165120
        dwMaxVideoFrameBufferSize       50688
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  3
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666666
        dwFrameInterval( 2)          10000000
      VideoStreaming Interface Descriptor:
        bLength                            38
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         5
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            352
        wHeight                           288
        dwMinBitRate                  1622016
        dwMaxBitRate                 48660480
        dwMaxVideoFrameBufferSize      202752
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  3
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666666
        dwFrameInterval( 2)          10000000
      VideoStreaming Interface Descriptor:
        bLength                            27
        bDescriptorType                    36
        bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
        bEndpointAddress                    0
        bNumImageSizePatterns               5
        wWidth( 0)                        640
        wHeight( 0)                       480
        wWidth( 1)                        160
        wHeight( 1)                       120
        wWidth( 2)                        176
        wHeight( 2)                       144
        wWidth( 3)                        320
        wHeight( 3)                       240
        wWidth( 4)                        352
        wHeight( 4)                       288
        bNumCompressionPatterns             5
        bCompression( 0)                  100
      VideoStreaming Interface Descriptor:
        bLength                             6
        bDescriptorType                    36
        bDescriptorSubtype                 13 (COLORFORMAT)
        bColorPrimaries                     1 (BT.709,sRGB)
        bTransferCharacteristics            1 (BT.709)
        bMatrixCoefficients                 4 (SMPTE 170M (BT.601))
      VideoStreaming Interface Descriptor:
        bLength                            27
        bDescriptorType                    36
        bDescriptorSubtype                  4 (FORMAT_UNCOMPRESSED)
        bFormatIndex                        2
        bNumFrameDescriptors                4
        guidFormat                            {59555932-0000-1000-8000-00aa00389b71}
        bBitsPerPixel                      16
        bDefaultFrameIndex                  1
        bAspectRatioX                       0
        bAspectRatioY                       0
        bmInterlaceFlags                 0x00
          Interlaced stream or variable: No
          Fields per frame: 1 fields
          Field 1 first: No
          Field pattern: Field 1 only
          bCopyProtect                      0
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         1
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                  1228800
        dwMaxBitRate                  7372800
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval        2000000
        bFrameIntervalType                  1
        dwFrameInterval( 0)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            160
        wHeight                           120
        dwMinBitRate                   307200
        dwMaxBitRate                  7680000
        dwMaxVideoFrameBufferSize       38400
        dwDefaultFrameInterval         500000
        bFrameIntervalType                  1
        dwFrameInterval( 0)            500000
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            176
        wHeight                           144
        dwMinBitRate                   405504
        dwMaxBitRate                  6082560
        dwMaxVideoFrameBufferSize       50688
        dwDefaultFrameInterval         666666
        bFrameIntervalType                  1
        dwFrameInterval( 0)            666666
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            352
        wHeight                           288
        dwMinBitRate                  1622016
        dwMaxBitRate                  6488064
        dwMaxVideoFrameBufferSize      202752
        dwDefaultFrameInterval        2500000
        bFrameIntervalType                  1
        dwFrameInterval( 0)           2500000
      VideoStreaming Interface Descriptor:
        bLength                            22
        bDescriptorType                    36
        bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
        bEndpointAddress                    0
        bNumImageSizePatterns               4
        wWidth( 0)                        320
        wHeight( 0)                       240
        wWidth( 1)                        160
        wHeight( 1)                       120
        wWidth( 2)                        176
        wHeight( 2)                       144
        wWidth( 3)                        352
        wHeight( 3)                       288
        bNumCompressionPatterns             4
      VideoStreaming Interface Descriptor:
        bLength                             6
        bDescriptorType                    36
        bDescriptorSubtype                 13 (COLORFORMAT)
        bColorPrimaries                     1 (BT.709,sRGB)
        bTransferCharacteristics            1 (BT.709)
        bMatrixCoefficients                 4 (SMPTE 170M (BT.601))
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       2
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0300  1x 768 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0350  1x 848 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       4
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0380  1x 896 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       5
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x039f  1x 927 bytes
        bInterval               1
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         2
      bInterfaceCount         2
      bFunctionClass          1 Audio
      bFunctionSubClass       0 
      bFunctionProtocol       0 
      iFunction               4 FaceCam 312 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0 
      iInterface              4 FaceCam 312 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength           38
        bInCollection           1
        baInterfaceNr( 0)       3
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Microphone
        bAssocTerminal          0
        bNrChannels             1
        wChannelConfig     0x0000
        iChannelNames           0 
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             3
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               5
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 8
        bDescriptorType        36
        bDescriptorSubtype      6 (FEATURE_UNIT)
        bUnitID                 5
        bSourceID               1
        bControlSize            1
        bmaControls( 0)      0x03
          Mute
          Volume
        iFeature                0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           3
        bDelay                  1 frames
        wFormatTag              1 PCM
      AudioStreaming Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             1
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            1 Discrete
        tSamFreq[ 0]        48000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0060  1x 96 bytes
        bInterval               1
        bRefresh                0
        bSynchAddress           0
        AudioControl Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay              0 Undefined
Device Status:     0x0000
  (Bus Powered)
 
  


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