From: "Martin Hundebøll" <martin@geanix.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>,
linux-kernel@vger.kernel.org
Cc: "Martin Hundebøll" <martin@geanix.com>,
"Sean Nyekjær" <sean@geanix.com>,
"Esben Haabendal" <esben@geanix.com>
Subject: [PATCHv2 1/4] tty: n_gsm: remove obsolete mknod doc example
Date: Tue, 9 Jul 2019 08:46:30 +0200 [thread overview]
Message-ID: <20190709064633.45411-1-martin@geanix.com> (raw)
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>
---
Changes since v1:
* updated bullet numbering
Documentation/serial/n_gsm.rst | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
diff --git a/Documentation/serial/n_gsm.rst b/Documentation/serial/n_gsm.rst
index f3ad9fd26408..4f37198423f7 100644
--- a/Documentation/serial/n_gsm.rst
+++ b/Documentation/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
--
2.22.0
next reply other threads:[~2019-07-09 6:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-09 6:46 Martin Hundebøll [this message]
2019-07-09 6:46 ` [PATCHv2 2/4] tty: n_gsm: update doc example to use header for N_GSM0710 define Martin Hundebøll
2019-07-09 6:46 ` [PATCHv2 3/4] tty: n_gsm: add helper to convert mux-num to/from tty-base Martin Hundebøll
2019-07-10 11:48 ` Alan Cox
2019-07-09 6:46 ` [PATCHv2 4/4] tty: n_gsm: add ioctl to map serial device to mux'ed tty Martin Hundebøll
2019-07-09 6:49 ` Jiri Slaby
2019-07-09 6:52 ` Martin Hundebøll
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