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Commit cdc32fd6 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: cp210x: initialise baud rate at open 



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: default avatarJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent e5990874

drivers/usb/serial/cp210x.c

+4 −0
Original line number Diff line number Diff line
@@ -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);

}