Failed to open the uvc camera (IEC-311)

[ps993390891]

Answers checklist.

• I have read the component documentation ESP-IDF Components and the issue is not addressed there.
• I am using target and esp-idf version as defined in component's idf_component.yml
• I have searched the issue tracker for a similar issue and not found any related issue.

Which component are you using? If you choose Other, provide details in More Information.

host/uvc

ESP-IDF version.

v5.4.1

Development Kit.

ESP32-P4

Used Component version.

espressif__usb_host_uvc V2.3.0

More Information.

I (1609) UVC example: Installing USB Host
I (1649) UVC example: Installing UVC driver
I (1649) UVC example: Opening UVC device 0x0000:0x0000-0
864x480@0.0FPS...
I (1649) main_task: Returned from app_main()
*** Configuration descriptor ***
bLength 9
bDescriptorType 2
wTotalLength 487
bNumInterfaces 5
bConfigurationValue 1
iConfiguration 4
bmAttributes 0xc0
bMaxPower 2mA
*** Interface Association Descriptor ***
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 0xe
bFunctionSubClass 0x3
bFunctionProtocol 0x0
iFunction 5
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 0xe
bInterfaceSubClass 0x1
bInterfaceProtocol 0x0
iInterface 5
*** Class-specific VC Interface Descriptor ***
bLength 13
bDescriptorType 0x24
bDescriptorSubType 0x01
bcdUVC 0110
wTotalLength 79
dwClockFrequency 48000000
bInCollection 1
baInterfaceNr[0] 1
*** Input Terminal Descriptor (Camera) ***
bLength 18
bDescriptorType 0x24
bDescriptorSubType 0x02
bTerminalID 0x1
wTerminalType 0x201
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x2 0x0 0x0
*** Processing Unit Descriptor ***
bLength 12
bDescriptorType 0x24
bDescriptorSubType 0x05
bUnitID 2
bSourceID 1
wMaxMultiplier 16384
bControlSize 2
bmControls 0x1 0x0 0x0
iProcessing 9
bmVideoStandards 0x1B
*** Extension Unit Descriptor unsupported, skipping... ***
*** Output Terminal Descriptor ***
bLength 9
bDescriptorType 0x24
bDescriptorSubType 0x03
bTerminalID 3
wTerminalType 0x101
bAssocTerminal 0
bSourceID 2
iTerminal 0
*** Endpoint descriptor ***
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 0x3 INT
wMaxPacketSize 16
bInterval 8
*** Class-specific Interrupt Endpoint Descriptor ***
bLength 5
bDescriptorType 0x25
bDescriptorSubType 3
wMaxTransferSize 16
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 0xe
bInterfaceSubClass 0x2
bInterfaceProtocol 0x0
iInterface 6
*** Class-specific VC Interface Descriptor ***
bLength 14
bDescriptorType 0x24
bDescriptorSubType 0x01
bcdUVC b501
wTotalLength 33024
dwClockFrequency 768
bInCollection 0
*** Extension Unit Descriptor unsupported, skipping... ***
*** VS Frame Descriptor ***
bLength 30
bDescriptorType 0x24
bDescriptorSubType 0x07
bFrameIndex 1
bmCapabilities 0x0
wWidth 1280
wHeigh 720
dwMinBitRate 20480000
dwMaxBitRate 20480000
dwMaxVideoFrameBufSize 1843200
dwDefaultFrameInterval 666666
bFrameIntervalType 1
FrameInterval[0] 666666
*** VS Frame Descriptor ***
bLength 30
bDescriptorType 0x24
bDescriptorSubType 0x07
bFrameIndex 2
bmCapabilities 0x0
wWidth 480
wHeigh 320
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
FrameInterval[0] 666666
*** VS Frame Descriptor ***
bLength 30
bDescriptorType 0x24
bDescriptorSubType 0x07
bFrameIndex 3
bmCapabilities 0x0
wWidth 864
wHeigh 480
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
FrameInterval[0] 666666
*** VS Frame Descriptor ***
bLength 30
bDescriptorType 0x24
bDescriptorSubType 0x07
bFrameIndex 4
bmCapabilities 0x0
wWidth 320
wHeigh 240
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
FrameInterval[0] 666666
*** VS Frame Descriptor ***
bLength 30
bDescriptorType 0x24
bDescriptorSubType 0x07
bFrameIndex 5
bmCapabilities 0x0
wWidth 800
wHeigh 480
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
FrameInterval[0] 666666
*** VS Color Format Descriptor ***
bLength 6
bDescriptorType 0x24
bDescriptorSubType 0x0D
bColorPrimaries 0x1
bTransferCharacteristics 1
bMatrixCoefficients 0x4
*** Endpoint descriptor ***
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 0x2 BULK
wMaxPacketSize 64
bInterval 0
*** Interface Association Descriptor ***
bLength 8
bDescriptorType 11
bFirstInterface 2
bInterfaceCount 3
bFunctionClass 0x1
bFunctionSubClass 0x0
bFunctionProtocol 0x0
iFunction 8
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0x1
bInterfaceSubClass 0x1
bInterfaceProtocol 0x0
iInterface 8
*** Class-specific VC Interface Descriptor ***
bLength 10
bDescriptorType 0x24
bDescriptorSubType 0x01
bcdUVC 0100
wTotalLength 52
dwClockFrequency 201589506
bInCollection 36
baInterfaceNr[0] 2
baInterfaceNr[1] 1
baInterfaceNr[2] 1
baInterfaceNr[3] 1
baInterfaceNr[4] 0
baInterfaceNr[5] 1
baInterfaceNr[6] 1
baInterfaceNr[7] 0
baInterfaceNr[8] 10
baInterfaceNr[9] 9
baInterfaceNr[10] 9
baInterfaceNr[11] 36
baInterfaceNr[12] 3
baInterfaceNr[13] 2
baInterfaceNr[14] 1
baInterfaceNr[15] 3
baInterfaceNr[16] 0
baInterfaceNr[17] 1
baInterfaceNr[18] 11
baInterfaceNr[19] 12
baInterfaceNr[20] 36
baInterfaceNr[21] 2
baInterfaceNr[22] 3
baInterfaceNr[23] 1
baInterfaceNr[24] 2
baInterfaceNr[25] 0
baInterfaceNr[26] 1
baInterfaceNr[27] 1
baInterfaceNr[28] 0
baInterfaceNr[29] 13
baInterfaceNr[30] 12
baInterfaceNr[31] 9
baInterfaceNr[32] 36
baInterfaceNr[33] 3
baInterfaceNr[34] 4
baInterfaceNr[35] 1
!!!!! Unknown Input terminal descriptor !!!!!
*** Output Terminal Descriptor ***
bLength 9
bDescriptorType 0x24
bDescriptorSubType 0x03
bTerminalID 2
wTerminalType 0x301
bAssocTerminal 0
bSourceID 1
iTerminal 11
*** Input Terminal Descriptor (Camera) ***
bLength 12
bDescriptorType 0x24
bDescriptorSubType 0x02
bTerminalID 0x3
wTerminalType 0x201
bAssocTerminal 0
iTerminal 1
wObjectiveFocalLengthMin 1
wObjectiveFocalLengthMax 3085
wOcularFocalLength 9225
bControlSize 3
bmControls 0x4 0x1 0x1
*** Output Terminal Descriptor ***
bLength 9
bDescriptorType 0x24
bDescriptorSubType 0x03
bTerminalID 4
wTerminalType 0x101
bAssocTerminal 0
bSourceID 3
iTerminal 14
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0x1
bInterfaceSubClass 0x2
bInterfaceProtocol 0x0
iInterface 15
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 0x1
bInterfaceSubClass 0x2
bInterfaceProtocol 0x0
iInterface 16
*** Class-specific VC Interface Descriptor ***
bLength 7
bDescriptorType 0x24
bDescriptorSubType 0x01
bcdUVC 0101
wTotalLength 1
dwClockFrequency 16917515
bInCollection 1
baInterfaceNr[0] 2
*** Input Terminal Descriptor (Camera) ***
bLength 11
bDescriptorType 0x24
bDescriptorSubType 0x02
bTerminalID 0x1
wTerminalType 0x201
bAssocTerminal 16
iTerminal 1
wObjectiveFocalLengthMin 8000
wObjectiveFocalLengthMax 2304
wOcularFocalLength 261
bControlSize 9
bmControls 0x20 0x0 0x1
*** Endpoint descriptor ***
bLength 9
bDescriptorType 5
bEndpointAddress 0x1 EP 1 OUT
bmAttributes 0x9 ISOC
wMaxPacketSize 32
bInterval 1
*** Class-specific Interrupt Endpoint Descriptor ***
bLength 7
bDescriptorType 0x25
bDescriptorSubType 1
wMaxTransferSize 257
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0x1
bInterfaceSubClass 0x2
bInterfaceProtocol 0x0
iInterface 17
*** Interface descriptor ***
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 0x1
bInterfaceSubClass 0x2
bInterfaceProtocol 0x0
iInterface 18
*** Class-specific VC Interface Descriptor ***
bLength 7
bDescriptorType 0x24
bDescriptorSubType 0x01
bcdUVC 0104
wTotalLength 1
dwClockFrequency 16917515
bInCollection 1
baInterfaceNr[0] 2
*** Input Terminal Descriptor (Camera) ***
bLength 11
bDescriptorType 0x24
bDescriptorSubType 0x02
bTerminalID 0x1
wTerminalType 0x201
bAssocTerminal 16
iTerminal 1
wObjectiveFocalLengthMin 8000
wObjectiveFocalLengthMax 2304
wOcularFocalLength 33285
bControlSize 5
bmControls 0x20 0x0 0x1
*** Endpoint descriptor ***
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 0x5 ISOC
wMaxPacketSize 32
bInterval 1
*** Class-specific Interrupt Endpoint Descriptor ***
bLength 7
bDescriptorType 0x25
bDescriptorSubType 1
wMaxTransferSize 1
I (3469) UVC example: Device 0x0000:0x0000-0 OPENED!
I (3569) UVC example: Stream 0 start. Iteration 0
E (3569) uvc-control: uvc_host_stream_control(58): Could not find format that matches required format
E (3569) uvc-control: uvc_host_stream_control(58): Could not find format that matches required format
E (3589) uvc: uvc_host_stream_start(825): Failed to negotiate requested Video Stream format
W (8599) UVC example: Stream 0: Frame not received on time
I (8599) UVC example: Stream 0 stop
I (10699) UVC example: Stream 0 start. Iteration 1

[github-actions]

Hi @ps993390891! Please be aware that the following suggestions are generated by a bot and haven't been fact-checked by Espressif Systems. We hope that this message will help you until an Espressif Engineer looks at your issue.

---

Thank you for providing detailed logs and configuration information. Based on your log output and the provided descriptors, the key error is:

E (3569) uvc-control: uvc_host_stream_control(58): Could not find format that matches required format
E (3589) uvc: uvc_host_stream_start(825): Failed to negotiate requested Video Stream format

This means the UVC host driver could not find a video format on the camera that matches the format requested by your application. This is a common issue when the requested resolution, frame rate, or format does not exactly match what the camera advertises in its descriptors.

Troubleshooting Steps

1. Check Supported Formats and Resolutions

   • From your log, the camera advertises several frame descriptors, for example:
     • 1280x720 @ 666666 (15 FPS)
     • 864x480 @ 666666 (15 FPS)
     • 800x480, 480x320, 320x240, etc.
   • Make sure your application is requesting a format, resolution, and frame interval that exactly matches one of these descriptors. For example, if you request 864x480@0.0FPS, the FPS (frame interval) of 0.0 is not valid; you should use the interval value from the descriptor (e.g., 666666, which is 15 FPS).

2. Set the Correct Stream Configuration

   • In the USB Host UVC example, the stream configuration is set in the stream_config variable in main.c. Ensure you are using a supported resolution and frame interval.
   • For example, to select 1280x720@15FPS (interval 666666), set:

     .width = 1280,
     .height = 720,
     .frame_interval = 666666, // 15 FPS

   • If you want to use a different resolution, pick one from the descriptors and use its corresponding frame interval.

3. Try Default FPS

   • The latest driver allows you to set FPS = 0 to request the default FPS for a given resolution. This can help if you are unsure about the exact interval value.

4. Check for Bulk vs Isochronous Transfer

   • Your camera uses a BULK endpoint (bmAttributes 0x2) with wMaxPacketSize 64. Some cameras may not work well with BULK mode on all hosts. If possible, try a camera with ISOC endpoints for better compatibility, or ensure your driver is configured to support BULK transfers.

5. Driver Version

   • You are using espressif__usb_host_uvc V2.3.0, which is the latest version and includes fixes for format negotiation and bulk transfer issues. If you have made local modifications, revert to the official version for testing.

Summary

• Update your stream configuration to match one of the advertised formats and frame intervals.
• Set the frame interval to the value from the descriptor (e.g., 666666 for 15 FPS).
• If the problem persists, try setting FPS to 0 to use the default.
• Ensure your camera is supported and, if possible, test with a different camera.

For more details, see the USB Host UVC documentation and the example README.

If you continue to have issues after verifying the above, please provide your exact stream configuration code and confirm which camera model you are using, so we can assist further.

[ps993390891]

Ubuntu lsusb -v info：
Bus 001 Device 010: ID 22d2:4322 MANUFACTURER PRODUCT
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x22d2
idProduct 0x4322
bcdDevice 4.09
iManufacturer 1 MANUFACTURER
iProduct 2 PRODUCT
iSerial 3 12345678
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x01e7
bNumInterfaces 5
bConfigurationValue 1
iConfiguration 4
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 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 5
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.10
wTotalLength 0x004f
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 0x00000002
Auto-Exposure Mode
VideoControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
bUnitID 2
bSourceID 1
wMaxMultiplier 16384
bControlSize 2
bmControls 0x00000001
Brightness
iProcessing 0
bmVideoStandards 0x09
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 10
guidExtensionCode {a29e7641-de04-47e3-8b2b-f4341aff003b}
bNumControls 15
bNrInPins 1
baSourceID( 0) 2
bControlSize 2
bmControls( 0) 0x01
bmControls( 1) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 2
iTerminal 0
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 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 6
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 0x00b5
bEndpointAddress 0x81 EP 1 IN
bmInfo 0
bTerminalLink 3
bStillCaptureMethod 0
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 0
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 1
bNumFrameDescriptors 5
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 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 20480000
dwMaxBitRate 20480000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 480
wHeight 320
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 864
wHeight 480
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 800
wHeight 480
dwMinBitRate 10240000
dwMaxBitRate 10240000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
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))
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 2
bInterfaceCount 3
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 0
iFunction 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 8
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 0x0034
bInCollection 2
baInterfaceNr(0) 3
baInterfaceNr(1) 4
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0001
Left Front (L)
iChannelNames 10
iTerminal 9
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 1
iTerminal 11
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0001
Left Front (L)
iChannelNames 13
iTerminal 12
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 4
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 3
iTerminal 14
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 15
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 16
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
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] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioStreaming Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0001
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 17
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 18
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 4
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] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioStreaming Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0x0000

[tore-espressif]

@ps993390891 The device descriptor looks OK.

Could you please try opening the stream with explicitly setting FPS=15 and format = MJPEG?

[ps993390891]

I tried it, still the same error

log.txt