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USB: cp210x: initialise baud rate at open

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The newer cp2104 devices require the baud rate to be initialised after
power on. Make sure it is set when port is opened.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johan Hovold 2012-01-16 00:36:52 +01:00 committed by Greg Kroah-Hartman
parent e5990874e5
commit cdc32fd6f7
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/serial/cp210x.c
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@ -417,6 +417,10 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
/* Configure the termios structure */
cp210x_get_termios(tty, port);
/* The baud rate must be initialised on cp2104 */
if (tty)
cp210x_change_speed(tty, port, NULL);
return usb_serial_generic_open(tty, port);
}