rrrrrrobot
rrrrrrobot
Expect dma capability in dwc2
:~$ v4l2-ctl --device=/dev/video0 --set-fmt-video=width=128,height=96,pixelformat=YUYV --stream-mmap --stream-to=file.raw VIDIOC_STREAMON returned -1 (Cannot allocate memory)
[test_log.txt](https://github.com/hathach/tinyusb/files/12011693/test_log.txt)
Thank you so much for the split test I pull up the latest code, commit： f1e006d09bd32088ab421d0b519eb89c531eda4e Using full speed wMaxPacketSize set to 64 B (default) git diff： // video streaming...
Sorry, maybe I didn't make it clear. I used stm32f746disco, USB IP is dwc2, and the purchased Pi Pico has not yet reached.
I didn't change lines 120 and 130, as you can see from my descriptors (lsusb_bulk_uvc.txt), I actually needed to use the high speed mode of DWC2, which is the IP...
Perhaps there are some compatibility issues with the dwc2 driver
As far as the current phenomenon is concerned, speed is not the most important, want to find out why DWC2 bulk mode does not produce images in Linux
After stm32f746disco and pico pi tests, the same configuration parameters, the same Linux system, stm32f746disco can not open normally in Linux, pico pi can, it is likely that there is...