Harald Welte 050b9dde68 HACK: Solve weird problem with lost OUT transfer on ping-pong endpoint ...

This adds an unconditional endpoint reset procedure to every SET_FEATURE(UnHalt).

It doesn't really make sense that this is required, *particularly* as
we *MUST NOT* set bEndpoint->bank to 0 here.

Without this patch, I'm observing the following problem:

Every first OUT transfer after a SET_INTERFACE + UNHALT on a bulk endpoint
is lost. "lost" means that it completes successfully on the host, can
be seen completing successfully with an ACK on a USB bus analyzer,
but still doesn't show up in the firmware.  No Endpoint Interrupt
is generated.

This can be reproduced by calling libusb_set_interface_alt_setting()
from the host and then submitting a single OUT transfer.

Change-Id: I18ed530e617baddf76e8f9829512443ce2a76e0d

2022-03-03 19:06:12 +01:00

..

cmsis

Change directory structure to align with Atmel softpack

2017-02-27 14:24:11 +01:00

include

set linux end of line

2018-07-11 22:01:58 +02:00

lib

Renamed main folder to firmware

2015-04-07 18:24:06 +02:00

source

HACK: Solve weird problem with lost OUT transfer on ping-pong endpoint

2022-03-03 19:06:12 +01:00

chip.h

Change directory structure to align with Atmel softpack

2017-02-27 14:24:11 +01:00