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drivers: eth: native_posix: if_name from cmd line

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Iface name which is used by native posix ethernet driver can only be
specified at compile-time. I wanted to run two instances of the same
program on native posix but did not want to make two separate builds only
to change the iface name. I have implemented getting the iface name from
command line.

Signed-off-by: Kacper Dalach <dalachowsky@gmail.com>
This commit is contained in:
Kacper Dalach 2024-06-25 13:29:10 +02:00 • committed by Anas Nashif
commit 52197b515a
2 changed files with 41 additions and 0 deletions
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14
doc/connectivity/networking/native_sim_setup.rst
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@ -142,3 +142,17 @@ For TCP test, type:
.. code-block:: console
./echo-client -t 127.0.0.1
Setting interface name from command line
****************************************
By default the Ethernet interface name used by native_sim is determined by
:kconfig:option:`CONFIG_ETH_NATIVE_POSIX_DRV_NAME`, but is also possible
to set it from the command line using ``--eth-if=<interface_name>``.
This can be useful if the application has to be
run in multiple instances and recompiling it for each instance would be
troublesome.
.. code-block:: console
./zephyr.exe --eth-if=zeth2