From mboxrd@z Thu Jan 1 00:00:00 1970 From: Enric Balletbo i Serra Subject: [PATCH] serial: omap: add the functionality of a 9-bit UART with userspaces CMSPAR Date: Thu, 6 Dec 2012 09:45:04 +0100 Message-ID: <1354783504-7826-1-git-send-email-eballetbo@gmail.com> Return-path: Sender: linux-omap-owner@vger.kernel.org To: Alan Cox , Greg Kroah-Hartman , linux-serial@vger.kernel.org, linux-omap@vger.kernel.org Cc: Enric Balletbo i Serra List-Id: linux-serial@vger.kernel.org From: Enric Balletbo i Serra Some systems require the additional communication functionality of a 9-bit UART. For that we could use the "stick" (mark/space) parity bit supported on omap serial device. When is set, if PARODD is set the parity bit is always 1; if PARODD is not set, then the parity bit is always 0. Signed-off-by: Enric Balletbo i Serra --- drivers/tty/serial/omap-serial.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 6d3d26a..197fb71 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -756,6 +756,8 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios, cval |= UART_LCR_PARITY; if (!(termios->c_cflag & PARODD)) cval |= UART_LCR_EPAR; + if (termios->c_cflag & CMSPAR) + cval |= UART_LCR_SPAR; /* * Ask the core to calculate the divisor for us. -- 1.7.10.4