This is a note to let you know that I've just added the patch titled
USB: ftdi_sio: fix initial baud rate
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
usb-ftdi_sio-fix-initial-baud-rate.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From 108e02b12921078a59dcacd048079ece48a4a983 Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Wed, 18 Jan 2012 01:46:00 +0100
Subject: USB: ftdi_sio: fix initial baud rate
From: Johan Hovold <[email protected]>
commit 108e02b12921078a59dcacd048079ece48a4a983 upstream.
Fix regression introduced by commit b1ffb4c851f1 ("USB: Fix Corruption
issue in USB ftdi driver ftdi_sio.c") which caused the termios settings
to no longer be initialised at open. Consequently it was no longer
possible to set the port to the default speed of 9600 baud without first
changing to another baud rate and back again.
Reported-by: Roland Ramthun <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Tested-by: Roland Ramthun <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index ff5a8e1..7dbdf1e 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1823,6 +1823,7 @@ static int ftdi_sio_port_remove(struct usb_serial_port
*port)
static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
{
+ struct ktermios dummy;
struct usb_device *dev = port->serial->dev;
struct ftdi_private *priv = usb_get_serial_port_data(port);
int result;
@@ -1841,8 +1842,10 @@ static int ftdi_open(struct tty_struct *tty, struct
usb_serial_port *port)
This is same behaviour as serial.c/rs_open() - Kuba */
/* ftdi_set_termios will send usb control messages */
- if (tty)
- ftdi_set_termios(tty, port, tty->termios);
+ if (tty) {
+ memset(&dummy, 0, sizeof(dummy));
+ ftdi_set_termios(tty, port, &dummy);
+ }
/* Start reading from the device */
result = usb_serial_generic_open(tty, port);
Patches currently in longterm-queue-2.6.32 which might be from
[email protected] are
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/usb-cp210x-do-not-map-baud-rates-to-b0.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/usb-ftdi_sio-fix-tiocsserial-baud_base-handling.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/usb-ftdi_sio-fix-initial-baud-rate.patch
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