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doc: net: Add information about GSM modem support

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General information about GSM modem added.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2020-02-13 12:49:23 +02:00 • committed by Johan Hedberg
commit 24abb19f41
3 changed files with 24 additions and 1 deletions
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21
doc/reference/networking/gsm_modem.rst Normal file
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.. _gsm_modem:
Generic GSM Modem
#################
Overview
********
The generic GSM modem driver allows the user to connect Zephyr to a GSM modem
which provides a data connection to cellular operator's network.
The Zephyr uses :ref:`PPP (Point-to-Point Protocol) <ppp>` to connect
to the GSM modem using UART. Note that some cellular modems have proprietary
offloading support using AT commands, but usually those modems also support
3GPP standards and provide PPP connection to them.
See :ref:`GSM modem sample application <gsm-modem-sample>` how to setup Zephyr
to use the GSM modem.
The GSM muxing, that is defined in
`GSM 07.10 <https://www.etsi.org/deliver/etsi_ts/127000_127099/127010/15.00.00_60/ts_127010v150000p.pdf>`__,
and which allows mixing of AT commands and PPP traffic, is not supported in
this version of Zephyr.

3
doc/reference/networking/index.rst
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@ -12,4 +12,5 @@ Networking
protocols.rst
system_mgmt.rst
tsn.rst
can.rst
can.rst
gsm_modem.rst

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doc/reference/networking/ppp.rst
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@ -36,6 +36,7 @@ supports only these protocols:
See also the :zephyr_file:`samples/net/sockets/echo_server/overlay-ppp.conf`
file for configuration option examples.
For using PPP with GSM modem, see :ref:`gsm_modem` for additional information.
Testing
*******