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 <j...@jtan.com>
---
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
--
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