Hi!
[ Upstream commit 5d363120aa548ba52d58907a295eee25f8207ed2 ]
This patch adds new config_ep_by_speed_and_alt function which extends the config_ep_by_speed about alt parameter. This additional parameter allows to find proper usb_ss_ep_comp_descriptor.
drivers/usb/gadget/composite.c | 78 ++++++++++++++++++++++++++-------- include/linux/usb/composite.h | 3 ++
It seems that (at least for 4.19) we applied rather big patch to merge unused function.
Best regards, Pavel