diff options
| author | Martin Hundebøll <martin@geanix.com> | 2019-07-10 21:26:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 12:43:43 +0200 |
| commit | 69b1aaa4504159054728cebe8df43b82c41e8987 (patch) | |
| tree | 498dbfba1b1384669d0bd8312fff859f145125ed /Documentation/driver-api | |
| parent | d45331b00ddb179e291766617259261c112db872 (diff) | |
tty: n_gsm: remove obsolete mknod doc example
The n_gsm driver handles registration of /dev/gsmttyX nodes, so there's
no need to do mknod manually.
Signed-off-by: Martin Hundebøll <martin@geanix.com>
Link: https://lore.kernel.org/r/20190710192656.60381-1-martin@geanix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/serial/n_gsm.rst | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/Documentation/driver-api/serial/n_gsm.rst b/Documentation/driver-api/serial/n_gsm.rst index f3ad9fd26408..4f37198423f7 100644 --- a/Documentation/driver-api/serial/n_gsm.rst +++ b/Documentation/driver-api/serial/n_gsm.rst @@ -63,24 +63,14 @@ Major parts of the initialization program : daemon(0,0); pause(); -4. create the devices corresponding to the "virtual" serial ports (take care, - each modem has its configuration and some DLC have dedicated functions, - for example GPS), starting with minor 1 (DLC0 is reserved for the management - of the mux):: - - MAJOR=`cat /proc/devices |grep gsmtty | awk '{print $1}` - for i in `seq 1 4`; do - mknod /dev/ttygsm$i c $MAJOR $i - done - -5. use these devices as plain serial ports. +4. use these devices as plain serial ports. for example, it's possible: - and to use gnokii to send / receive SMS on ttygsm1 - to use ppp to establish a datalink on ttygsm2 -6. first close all virtual ports before closing the physical port. +5. first close all virtual ports before closing the physical port. Note that after closing the physical port the modem is still in multiplexing mode. This may prevent a successful re-opening of the port later. To avoid |