adoc

modprobe.adoc

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+[[modprobe]]
+= modprobe
+
+If you are feeling fancy, you can also insert modules with:
+
+....
+modprobe dep2
+lsmod
+# dep and dep2
+....
+
+This method also deals with module dependencies, which we almost don't
+use to make examples simpler:
+
+* https://askubuntu.com/questions/20070/whats-the-difference-between-insmod-and-modprobe
+* https://stackoverflow.com/questions/22891705/whats-the-difference-between-insmod-and-modprobe
+
+Removal also removes required modules that have zero usage count:
+
+....
+modprobe -r dep2
+lsmod
+# Nothing.
+....
+
+but it can't know if you actually insmodded them separately or not:
+
+....
+modprobe dep
+modprobe dep2
+modprobe -r dep2
+# Nothing.
+....
+
+so it is a bit risky.
+
+`modprobe` searches for modules under:
+
+....
+ls /lib/modules/*/extra/
+....
+
+Kernel modules built from the Linux mainline tree with
+`CONFIG_SOME_MOD=m`, are automatically available with `modprobe`, e.g.:
+
+....
+modprobe dummy-irq
+....