From: Bagas Sanjaya <bagasdotme@gmail.com>
To: Angel4005 <ooara1337@gmail.com>, linux-media@vger.kernel.org
Cc: linux-uvc-devel@lists.sourceforge.net,
Linux Regressions <regressions@lists.linux.dev>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Subject: Re: [REGRESSION] uvcvideo: Grandstream GUV3100 (2bab:0011) broken on recent kernels (including LTS)
Date: Thu, 9 Oct 2025 06:16:48 +0700 [thread overview]
Message-ID: <aObw4BRRheGO3_cg@archie.me> (raw)
In-Reply-To: <CAOzBiVuS7ygUjjhCbyWg-KiNx+HFTYnqH5+GJhd6cYsNLT=DaA@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 67715 bytes --]
On Wed, Oct 08, 2025 at 03:56:20PM +0300, Angel4005 wrote:
> Hello,
>
> I encountered regression (breakage) for the Grandstream GUV3100 webcam
> (ID 2bab:0011) in the uvcvideo driver.
>
> Testing showed that the camera WORKS on kernel 6.16.8.arch3-1.
>
> However, it does NOT WORK on newer kernel versions, including the
> latest stable version (6.17.1.arch1-1) and the latest LTS kernel
> version (6.12.51-1).
>
> Problem: The driver finds the device but cannot start the video
> stream, resulting in an error in dmesg: “No streaming interface found
> for terminal 65535.”
>
> I checked all known quirks (0x128, 0x100, 0x400) without success. The
> logs attached below were collected on a non-working kernel with the
> quirks=0x400 parameter applied.
>
> I hope this information will help restore device support.
>
Can you do bisection (see [1])?
[1]: https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html
> Thank you for your work!
>
> --- 1. lsusb -d 2bab:0011 -v (Full USB descriptor) ---
>
>
> Bus 001 Device 004: ID 2bab:0011 GRANDSTREAM GUV3100 GRANDSTREAM GUV3100
> Negotiated speed: High Speed (480Mbps)
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 [unknown]
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> idVendor 0x2bab GRANDSTREAM GUV3100
> idProduct 0x0011 GRANDSTREAM GUV3100
> bcdDevice 4.09
> iManufacturer 4 GRANDSTREAM GUV3100
> iProduct 5 GRANDSTREAM GUV3100
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 0x0b33
> bNumInterfaces 4
> bConfigurationValue 1
> iConfiguration 7 video
> bmAttributes 0xc0
> Self Powered
> MaxPower 2mA
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 0
> bInterfaceCount 2
> bFunctionClass 14 Video
> bFunctionSubClass 3 Video Interface Collection
> bFunctionProtocol 0
> iFunction 8 GRANDSTREAM GUV3100
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 14 Video
> bInterfaceSubClass 1 Video Control
> bInterfaceProtocol 0
> iInterface 8 GRANDSTREAM GUV3100
> VideoControl Interface Descriptor:
> bLength 13
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdUVC 1.00
> wTotalLength 0x0072
> dwClockFrequency 48.000000MHz
> bInCollection 1
> baInterfaceNr( 0) 1
> 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 0x00001e00
> Zoom (Absolute)
> Zoom (Relative)
> PanTilt (Absolute)
> PanTilt (Relative)
> VideoControl Interface Descriptor:
> bLength 12
> bDescriptorType 36
> bDescriptorSubtype 5 (PROCESSING_UNIT)
> bUnitID 2
> bSourceID 1
> wMaxMultiplier 16384
> bControlSize 2
> bmControls 0x0000177f
> Brightness
> Contrast
> Hue
> Saturation
> Sharpness
> Gamma
> White Balance Temperature
> Backlight Compensation
> Gain
> Power Line Frequency
> White Balance Temperature, Auto
> iProcessing 0
> bmVideoStandards 0x00
> VideoControl Interface Descriptor:
> bLength 31
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 3
> guidExtensionCode {a29e7641-de04-47e3-8b2b-f4341aff003b}
> bNumControls 48
> bNrInPins 1
> baSourceID( 0) 2
> bControlSize 6
> bmControls( 0) 0xff
> bmControls( 1) 0xff
> bmControls( 2) 0xff
> bmControls( 3) 0xff
> bmControls( 4) 0xff
> bmControls( 5) 0xff
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 31
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 4
> guidExtensionCode {ffe52d21-8030-4e2c-82d9-f587d00540bd}
> bNumControls 48
> bNrInPins 1
> baSourceID( 0) 2
> bControlSize 6
> bmControls( 0) 0xff
> bmControls( 1) 0xff
> bmControls( 2) 0xff
> bmControls( 3) 0xff
> bmControls( 4) 0xff
> bmControls( 5) 0xff
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> bTerminalID 4
> wTerminalType 0x0101 USB Streaming
> bAssocTerminal 0
> bSourceID 3
> iTerminal 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 9 Video Streaming
> VideoStreaming Interface Descriptor:
> bLength 14
> bDescriptorType 36
> bDescriptorSubtype 1 (INPUT_HEADER)
> bNumFormats 1
> wTotalLength 0x0a12
> bEndpointAddress 0x81 EP 1 IN
> bmInfo 0
> bTerminalLink 4
> bStillCaptureMethod 0
> bTriggerSupport 0
> bTriggerUsage 0
> bControlSize 1
> bmaControls( 0) 0
> VideoStreaming Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> bFormatIndex 1
> bNumFrameDescriptors 8
> guidFormat
> {32595559-0000-0010-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 34
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1280
> wHeight 720
> dwMinBitRate 18432000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 1000000
> bFrameIntervalType 2
> dwFrameInterval( 0) 1000000
> dwFrameInterval( 1) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1024
> wHeight 576
> dwMinBitRate 47185920
> dwMaxBitRate 283115520
> dwMaxVideoFrameBufferSize 1179648
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 34
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 600
> dwMinBitRate 18432000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 1000000
> bFrameIntervalType 2
> dwFrameInterval( 0) 1000000
> dwFrameInterval( 1) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 448
> dwMinBitRate 28672000
> dwMaxBitRate 172032000
> dwMaxVideoFrameBufferSize 716800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 46
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 24576000
> dwMaxBitRate 147456000
> dwMaxVideoFrameBufferSize 614400
> dwDefaultFrameInterval 400000
> bFrameIntervalType 5
> dwFrameInterval( 0) 400000
> dwFrameInterval( 1) 500000
> dwFrameInterval( 2) 666666
> dwFrameInterval( 3) 1000000
> dwFrameInterval( 4) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 6
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 360
> dwMinBitRate 18432000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 7
> bmCapabilities 0x00
> Still image unsupported
> wWidth 480
> wHeight 270
> dwMinBitRate 10368000
> dwMaxBitRate 62208000
> dwMaxVideoFrameBufferSize 259200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 8
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 180
> dwMinBitRate 18432000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 6 (FORMAT_MJPEG)
> bFormatIndex 2
> bNumFrameDescriptors 14
> bFlags 0
> Fixed-size samples: No
> 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 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1920
> wHeight 1080
> dwMinBitRate 165888000
> dwMaxBitRate 829440000
> dwMaxVideoFrameBufferSize 4147200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1600
> wHeight 896
> dwMinBitRate 114688000
> dwMaxBitRate 688128000
> dwMaxVideoFrameBufferSize 2867200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1280
> wHeight 720
> dwMinBitRate 73728000
> dwMaxBitRate 442368000
> dwMaxVideoFrameBufferSize 1843200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1024
> wHeight 576
> dwMinBitRate 47185920
> dwMaxBitRate 283115520
> dwMaxVideoFrameBufferSize 1179648
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 960
> wHeight 540
> dwMinBitRate 207360000
> dwMaxBitRate 248832000
> dwMaxVideoFrameBufferSize 1036800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 6
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 600
> dwMinBitRate 38400000
> dwMaxBitRate 230400000
> dwMaxVideoFrameBufferSize 960000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 7
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 448
> dwMinBitRate 28672000
> dwMaxBitRate 172032000
> dwMaxVideoFrameBufferSize 716800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 8
> bmCapabilities 0x00
> Still image unsupported
> wWidth 720
> wHeight 576
> dwMinBitRate 33177600
> dwMaxBitRate 199065600
> dwMaxVideoFrameBufferSize 829440
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 9
> bmCapabilities 0x00
> Still image unsupported
> wWidth 720
> wHeight 480
> dwMinBitRate 27648000
> dwMaxBitRate 165888000
> dwMaxVideoFrameBufferSize 691200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 10
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 24576000
> dwMaxBitRate 147456000
> dwMaxVideoFrameBufferSize 614400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 11
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 360
> dwMinBitRate 92160000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 12
> bmCapabilities 0x00
> Still image unsupported
> wWidth 480
> wHeight 270
> dwMinBitRate 10368000
> dwMaxBitRate 62208000
> dwMaxVideoFrameBufferSize 259200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 13
> bmCapabilities 0x00
> Still image unsupported
> wWidth 352
> wHeight 288
> dwMinBitRate 8110080
> dwMaxBitRate 48660480
> dwMaxVideoFrameBufferSize 202752
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 14
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 240
> dwMinBitRate 6144000
> dwMaxBitRate 36864000
> dwMaxVideoFrameBufferSize 153600
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 28
> bDescriptorType 36
> bDescriptorSubtype 16 (FORMAT_FRAME_BASED)
> bFormatIndex 3
> bNumFrameDescriptors 14
> guidFormat
> {34363248-0000-0010-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> bVariableSize 1
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1920
> wHeight 1080
> dwMinBitRate 165888000
> dwMaxBitRate 829440000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1600
> wHeight 896
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1280
> wHeight 720
> dwMinBitRate 73728000
> dwMaxBitRate 442368000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1024
> wHeight 576
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 960
> wHeight 540
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 6
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 600
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 7
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 448
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 8
> bmCapabilities 0x00
> Still image unsupported
> wWidth 720
> wHeight 576
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 9
> bmCapabilities 0x00
> Still image unsupported
> wWidth 720
> wHeight 480
> dwMinBitRate 27648000
> dwMaxBitRate 165888000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 10
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 11
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 360
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 12
> bmCapabilities 0x00
> Still image unsupported
> wWidth 480
> wHeight 270
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 13
> bmCapabilities 0x00
> Still image unsupported
> wWidth 352
> wHeight 288
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 14
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 240
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 28
> bDescriptorType 36
> bDescriptorSubtype 16 (FORMAT_FRAME_BASED)
> bFormatIndex 4
> bNumFrameDescriptors 14
> guidFormat
> {35363248-0000-0010-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> bVariableSize 1
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1920
> wHeight 1080
> dwMinBitRate 165888000
> dwMaxBitRate 829440000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 2
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1600
> wHeight 896
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 3
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1280
> wHeight 720
> dwMinBitRate 73728000
> dwMaxBitRate 442368000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 4
> bmCapabilities 0x00
> Still image unsupported
> wWidth 1024
> wHeight 576
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 5
> bmCapabilities 0x00
> Still image unsupported
> wWidth 960
> wHeight 540
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 6
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 600
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 7
> bmCapabilities 0x00
> Still image unsupported
> wWidth 800
> wHeight 448
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 8
> bmCapabilities 0x00
> Still image unsupported
> wWidth 720
> wHeight 576
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 9
> bmCapabilities 0x00
> Still image unsupported
> wWidth 720
> wHeight 480
> dwMinBitRate 27648000
> dwMaxBitRate 165888000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 10
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 480
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 11
> bmCapabilities 0x00
> Still image unsupported
> wWidth 640
> wHeight 360
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 12
> bmCapabilities 0x00
> Still image unsupported
> wWidth 480
> wHeight 270
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 13
> bmCapabilities 0x00
> Still image unsupported
> wWidth 352
> wHeight 288
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> VideoStreaming Interface Descriptor:
> bLength 50
> bDescriptorType 36
> bDescriptorSubtype 17 (FRAME_FRAME_BASED)
> bFrameIndex 14
> bmCapabilities 0x00
> Still image unsupported
> wWidth 320
> wHeight 240
> dwMinBitRate 103680000
> dwMaxBitRate 124416000
> dwDefaultFrameInterval 333333
> bFrameIntervalType 6
> dwBytesPerLine 0
> dwFrameInterval( 0) 333333
> dwFrameInterval( 1) 400000
> dwFrameInterval( 2) 500000
> dwFrameInterval( 3) 666666
> dwFrameInterval( 4) 1000000
> dwFrameInterval( 5) 2000000
> 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 9 Video Streaming
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0c00 2x 1024 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 9 Video Streaming
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1400 3x 1024 bytes
> bInterval 1
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 2
> bInterfaceCount 2
> bFunctionClass 1 Audio
> bFunctionSubClass 0 [unknown]
> bFunctionProtocol 0
> iFunction 11 GRANDSTREAM GUV3100
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 2
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 1 Audio
> bInterfaceSubClass 1 Control Device
> bInterfaceProtocol 0
> iInterface 11 GRANDSTREAM GUV3100
> AudioControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdADC 1.00
> wTotalLength 0x0027
> 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 0x0001
> Left Front (L)
> 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 9
> bDescriptorType 36
> bDescriptorSubtype 6 (FEATURE_UNIT)
> bUnitID 5
> bSourceID 1
> bControlSize 1
> bmaControls(0) 0x03
> Mute Control
> Volume Control
> bmaControls(1) 0x00
> 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 0x0001 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 4
> bRefresh 0
> bSynchAddress 0
> AudioStreaming Endpoint Descriptor:
> bLength 7
> bDescriptorType 37
> bDescriptorSubtype 1 (EP_GENERAL)
> bmAttributes 0x01
> Sampling Frequency
> bLockDelayUnits 0 Undefined
> wLockDelay 0x0000
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 [unknown]
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0001
> Self Powered
>
>
> --- 2. dmesg (Kernel log after connecting to a broken kernel) ---
>
> [ 363.567249] usb 1-1.3: new high-speed USB device number 6 using ehci-pci
> [ 363.658563] usb 1-1.3: New USB device found, idVendor=2bab,
> idProduct=0011, bcdDevice= 4.09
> [ 363.658569] usb 1-1.3: New USB device strings: Mfr=4, Product=5,
> SerialNumber=0
> [ 363.658571] usb 1-1.3: Product: GRANDSTREAM GUV3100
> [ 363.658573] usb 1-1.3: Manufacturer: GRANDSTREAM GUV3100
> [ 363.672993] uvcvideo 1-1.3:1.0: Found multiple Units with ID 4
> [ 363.673014] usb 1-1.3: Found UVC 1.00 device GRANDSTREAM GUV3100 (2bab:0011)
> [ 363.673017] usb 1-1.3: Forcing device quirks to 0x400 by module
> parameter for testing purpose.
> [ 363.673018] usb 1-1.3: Please report required quirks to the
> linux-media mailing list.
> [ 363.700829] usb 1-1.3: No streaming interface found for terminal 65535.
> [ 363.710048] usb 1-1.3: Warning! Unlikely big volume range (=7680),
> cval->res is probably wrong.
> [ 363.710052] usb 1-1.3: [5] FU [Mic Capture Volume] ch = 1, val = 5120/12800/1
Thanks.
--
An old man doll... just what I always wanted! - Clara
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
next prev parent reply other threads:[~2025-10-08 23:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-08 12:56 [REGRESSION] uvcvideo: Grandstream GUV3100 (2bab:0011) broken on recent kernels (including LTS) Angel4005
2025-10-08 23:16 ` Bagas Sanjaya [this message]
2025-10-09 6:50 ` Michal Pecio
2025-10-09 6:55 ` Ricardo Ribalda
2025-10-09 9:22 ` Angel4005
2025-10-09 9:29 ` Laurent Pinchart
2025-10-09 9:44 ` Angel4005
2025-10-09 9:59 ` Hans de Goede
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