On 05/01/2024 02:56, Valery Ushakov wrote:
I have updated my Olimex A20-OLinuXino-MICRO-eMMC to the currentish current, GENERIC kernel, sun7i-a20-olinuxino-micro-emmc.dtb It seems to have issues with USB (previously I ran it remotely with a serial console, so I don't know if these issues are new). xs
[snip]
Anything I can do to help debug it? I have zero clue about our USB stack, but can add debug printfs as instructed.
There's http://netbsd.org/docs/kernel/#usb-debugging start with uhub(4) and see why it's detaching then work your way down. It could be something like the firmware hasn't stopped using the USB controllers. I forget if there's a proper handoff for ehci. HTH, Nick