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nixos: add a small section about kernel module dev

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Domen Kožar 2016-05-20 11:55:20 +01:00
parent c2ee8e1033
commit 2d6d731f24
1 changed files with 21 additions and 0 deletions
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nixos/doc/manual/configuration/linux-kernel.xml
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@ -66,4 +66,25 @@ boot.kernel.sysctl."net.ipv4.tcp_keepalive_time" = 120;
sets the kernel’s TCP keepalive time to 120 seconds. To see the
available parameters, run <command>sysctl -a</command>.</para>
<section>
<title>Developing kernel modules</title>
<para>When developing kernel modules it's often convenient to run
edit-compile-run loop as quickly as possible.
See below snippet as an example of developing <literal>mellanix</literal>
drivers.
</para>
<screen><![CDATA[
$ nix-build '<nixpkgs>' -A linuxPackages.kernel.dev
$ nix-shell '<nixpkgs>' -A linuxPackages.kernel
$ unpackPhase
$ cd linux-*
$ make -C $dev/lib/modules/*/build M=$(pwd)/drivers/net/ethernet/mellanox modules
$ sudo insmod ./drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.ko
]]></screen>
</section>
</chapter>