armbuilder Posted February 23 Share Posted February 23 Was using a 5.15.x version of Arabian on an orange pi 4, and upgraded to latest 6.7.x image seems to have broken low level usb (specifically USB to ACM devices). Used the following command to reset an STM32 device over USB (stm32 is connected directly to USB and shows up as a ttyACM0 device in linux) python -c 'import termios; termios.tcsendbreak(3, 0)' 3>/dev/ttyACM0 this worked great but now no longer does. Any ideas? Anyway we can test if its an updated driver issue by reverting to older usb driver or possible a kernel issue? Seems to be a Armbian specific issue, since ubuntu on amd64 system with 6.x kernel works fine as well 0 Quote Link to comment Share on other sites More sharing options...
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