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(parent: 58ede4b) | patch
USB: serial: ch341: fix initial modem-control state
authorJohan Hovold <johan@kernel.org>
Fri, 6 Jan 2017 18:15:10 +0000 (19:15 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 Jan 2017 19:18:01 +0000 (20:18 +0100)
commit4aeab97a051560835668fc5c61eb56b20bd485d0
tree889868befbdf4da613d69b67aca55cb1e35dd5c2tree | snapshot
parent58ede4beda662c4e1681fee4fae2174028a1a841commit | diff
USB: serial: ch341: fix initial modem-control state

commit 4e2da44691cffbfffb1535f478d19bc2dca3e62b upstream.

DTR and RTS will be asserted by the tty-layer when the port is opened
and deasserted on close (if HUPCL is set). Make sure the initial state
is not-asserted before the port is first opened as well.

Fixes: 664d5df92e88 ("USB: usb-serial ch341: support for DTR/RTS/CTS")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/ch341.c diff | blob | history