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Message-Id: <20120201210051.533127419@clark.kroah.org> Date: Wed, 01 Feb 2012 13:00:51 -0800 From: Greg KH <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Johan Hovold <jhovold@...il.com>, Preston Fick <preston.fick@...abs.com> Subject: [87/89] USB: cp210x: initialise baud rate at open 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold <jhovold@...il.com> commit cdc32fd6f7b2b2580d7f1b74563f888e4dd9eb8a upstream. 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@...il.com> Cc: Preston Fick <preston.fick@...abs.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/usb/serial/cp210x.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -408,6 +408,10 @@ static int cp210x_open(struct tty_struct /* 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); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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