The driver wasn't properly configuring the hardware for the current termios settings under all conditions. Ensure that termios are written to the device when the port is activated. Signed-off-by: Jim Paris <jim@xxxxxxxx> --- Switched to Johan's suggestion of using a prototype rather than moving acm_tty_set_termios. This depends on his patch in order to get proper DTR handling. Thanks, Jim --- drivers/usb/class/cdc-acm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e934e19f49f5..d2cd1b6d02a7 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -58,6 +58,9 @@ static struct usb_driver acm_driver; static struct tty_driver *acm_tty_driver; static struct acm *acm_table[ACM_TTY_MINORS]; +static void acm_tty_set_termios(struct tty_struct *tty, + struct ktermios *termios_old); + static DEFINE_MUTEX(acm_table_lock); /* @@ -554,6 +557,8 @@ static int acm_port_activate(struct tty_port *port, struct tty_struct *tty) goto error_submit_urb; } + acm_tty_set_termios(tty, NULL); + /* * Unthrottle device in case the TTY was closed while throttled. */ -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
