A not on EHCI debug, the screwdriver on Beaglebone black would need some loving but works:
https://github.com/osresearch/heads/issues/541#issuecomment-481513900
On 10/14/19 10:53 AM, Nico Huber wrote:
On 13.10.19 16:40, Tom Hiller wrote:
The wiki briefly mentions "usb_debug_io.c" with a link to an old trac ticket. Could a second device connected via usb only read the logs? I am curious on the feasibility of attaching an Android phone/tablet with an app that could easily read coreboot debug information.
For EHCI debug, the basic requirements are that it's a high-speed capable device and that you can configure and use it with <= 8 byte transfers.
Usually this applies to Android devices and some have been used already for debugging. You need the `g_dbgp` gadget driver. This driver is reported to not always work, however... a workaround could be to use `g_serial` and add some support code to the debug target.
Nico _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org