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tty: n_gsm: update doc example to use header for N_GSM0710 define 

There is no reason to gues the line discipline number when it is
available from tty.h

Signed-off-by: Martin Hundebøll <martin@geanix.com>
Link: https://lore.kernel.org/r/20190710192656.60381-2-martin@geanix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Hundebøll 2019-07-10 21:26:54 +02:00 committed by Greg Kroah-Hartman
parent 69b1aaa450
commit a64d19aa0e
1 changed files with 1 additions and 1 deletions
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2
Documentation/driver-api/serial/n_gsm.rst
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@ -23,7 +23,7 @@ Major parts of the initialization program :
(a good starting point is util-linux-ng/sys-utils/ldattach.c)::
#include <linux/gsmmux.h>
#define N_GSM0710 21 /* GSM 0710 Mux */
#include <linux/tty.h>
#define DEFAULT_SPEED B115200
#define SERIAL_PORT /dev/ttyS0