Sending OPEN and START commands twice is not necessary for this driver.
Also send STOP command at close.
Signed-off-by: Mathieu OTHACEHE <m.othac...@gmail.com>
---
drivers/usb/serial/mxu11x0.c | 31 +++++++------------------------
1 file changed, 7 insertions(+), 24 deletions(-)
diff --git a/drivers/usb/serial/mxu11x0.c b/drivers/usb/serial/mxu11x0.c
index 0fe7eab..354fcb5 100644
--- a/drivers/usb/serial/mxu11x0.c
+++ b/drivers/usb/serial/mxu11x0.c
@@ -823,30 +823,6 @@ static int mxu1_open(struct tty_struct *tty, struct
usb_serial_port *port)
goto unlink_int_urb;
}
- /*
- * reset the data toggle on the bulk endpoints to work around bug in
- * host controllers where things get out of sync some times
- */
- usb_clear_halt(serial->dev, port->write_urb->pipe);
- usb_clear_halt(serial->dev, port->read_urb->pipe);
-
- if (tty)
- mxu1_set_termios(tty, port, NULL);
-
- status = mxu1_send_ctrl_urb(serial, MXU1_OPEN_PORT,
- open_settings, MXU1_UART1_PORT);
- if (status) {
- dev_err(&port->dev, "cannot send open command: %d\n", status);
- goto unlink_int_urb;
- }
-
- status = mxu1_send_ctrl_urb(serial, MXU1_START_PORT,
- 0, MXU1_UART1_PORT);
- if (status) {
- dev_err(&port->dev, "cannot send start command: %d\n", status);
- goto unlink_int_urb;
- }
-
status = usb_serial_generic_open(tty, port);
if (status)
goto unlink_int_urb;
@@ -866,6 +842,13 @@ static void mxu1_close(struct usb_serial_port *port)
usb_serial_generic_close(port);
usb_kill_urb(port->interrupt_in_urb);
+ status = mxu1_send_ctrl_urb(port->serial, MXU1_STOP_PORT,
+ 0, MXU1_UART1_PORT);
+ if (status) {
+ dev_err(&port->dev, "failed to send stop port command: %d\n",
+ status);
+ }
+
status = mxu1_send_ctrl_urb(port->serial, MXU1_CLOSE_PORT,
0, MXU1_UART1_PORT);
if (status) {
--
2.6.2
--
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