diff options
| author | Johan Hovold <johan@kernel.org> | 2017-01-06 19:15:10 +0100 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-03-06 17:29:14 -0500 |
| commit | 022104d55b754e9566102c90ac325fc5fc66cc28 (patch) | |
| tree | e336fc467e5021aa58393c86b798f95db85dbc76 /drivers | |
| parent | 49d412aedd679db0c644fc7815630c2c71a470fb (diff) | |
USB: serial: ch341: fix initial modem-control state
[ Upstream commit 4e2da44691cffbfffb1535f478d19bc2dca3e62b ]
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")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/ch341.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index c73808f095bb..2df74c018b55 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -253,7 +253,6 @@ static int ch341_port_probe(struct usb_serial_port *port) spin_lock_init(&priv->lock); priv->baud_rate = DEFAULT_BAUD_RATE; - priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR; r = ch341_configure(port->serial->dev, priv); if (r < 0) |