USB: core: add endpoint-blacklist quirk
authorJohan Hovold <johan@kernel.org>
Mon, 3 Feb 2020 15:38:28 +0000 (16:38 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 10 Feb 2020 19:14:22 +0000 (11:14 -0800)
commit73f8bda9b5dc1c69df2bc55c0cbb24461a6391a9
tree322a38a4d51b138cadb84fc659a755ee8a3b8525
parentb32196e35bd7bbc8038db1aba1fbf022dc469b6a
USB: core: add endpoint-blacklist quirk

Add a new device quirk that can be used to blacklist endpoints.

Since commit 3e4f8e21c4f2 ("USB: core: fix check for duplicate
endpoints") USB core ignores any duplicate endpoints found during
descriptor parsing.

In order to handle devices where the first interfaces with duplicate
endpoints are the ones that should have their endpoints ignored, we need
to add a blacklist.

Tested-by: edes <edes@gmx.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200203153830.26394-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/core/config.c
drivers/usb/core/quirks.c
drivers/usb/core/usb.h
include/linux/usb/quirks.h