tree b19ae1442825e09f5f29d750e56c7beed47f68e5
parent b7cf1bbdadea31586402cee83901f722321b95c9
author Marvin Lin <milkfafa@gmail.com> 1666686008 +0800
committer Marvin Lin <milkfafa@gmail.com> 1667802494 +0800

Add support for specifying UDC that HID gadget will connect to

Currently, HID gadget always connects to the USB virtual hub port
under /sys/bus/platform/devices/1e6a0000.usb-vhub, which only works
on ASPEED platform.

This commit adds support for specifying UDC that HID gadget will
connect to, it could be useful for non-ASPEED platform. Although there
are still some other ASPEED-specific behaviors need to be addressed,
but this commit is the first step for non-ASPEED platform.

Tested:
Specify UDC by '-u' parameter and HID gadget will connect to it. Otherwise,
HID gadget will connect to the USB virtual hub port.

Signed-off-by: Marvin Lin <milkfafa@gmail.com>
Change-Id: Ie24ed9d32cb4f7483e8d4c8b51cc5e1bb5fa94de