USB: gadget: dummy_hcd: fix hub-descriptor removable fields
authorJohan Hovold <johan@kernel.org>
Wed, 10 May 2017 16:18:25 +0000 (18:18 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 May 2017 09:53:02 +0000 (11:53 +0200)
commitd81182ce30dbd497a1e7047d7fda2af040347790
treea9e09d6c4ee380b39c9472c59c90dbc2362e9027
parent5383fae76b8224a8f0465be6ab9c7a645042951a
USB: gadget: dummy_hcd: fix hub-descriptor removable fields

Flag the first and only port as removable while also leaving the
remaining bits (including the reserved bit zero) unset in accordance
with the specifications:

"Within a byte, if no port exists for a given location, the bit
field representing the port characteristics shall be 0."

Also add a comment marking the legacy PortPwrCtrlMask field.

Fixes: 1cd8fd2887e1 ("usb: gadget: dummy_hcd: add SuperSpeed support")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/gadget/udc/dummy_hcd.c