Example for USBX UVC device (video)

[johvis71]

Hello Everyone
Is there an example to make USBX device class video (uvc) work?
I was able to implement a composite device which shows up as a camera in the windows Device manager.
USBX (generated by STM32CubeIDE) generates two files

• ux_device_video.c
• ux_device_video.h

Both contain only blank functions. They need to be filled.
Like this:

`VOID USBD_VIDEO_StreamChange(UX_DEVICE_CLASS_VIDEO_STREAM video_stream,
ULONG alternate_setting)
{
/ USER CODE BEGIN USBD_VIDEO_StreamChange /
UX_PARAMETER_NOT_USED(video_stream);
UX_PARAMETER_NOT_USED(alternate_setting);
/ USER CODE END USBD_VIDEO_StreamChange */

return;
}`

Is there an example, where i can copy from?
Or more detailed documentation?

Thank you
Johannes

[xiaocq2001]

Here is an example (on ST NUCLEO-H723ZG) that you can reference:
https://github.com/STMicroelectronics/x-cube-azrtos-h7/tree/main/Projects/NUCLEO-H723ZG/Applications/USBX/Ux_Device_Video

[johvis71]

Thank you, this helped