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While I can use lsmod in order to show currently active kernel modules, how can I see which drivers are statically built into the kernel AND currently active?

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up vote 11 down vote accepted

You could do a cat /lib/modules/$(uname -r)/modules.builtin

From the Kernel Documentaton


This file lists all modules that are built into the kernel. This is used by modprobe to not fail when trying to load something builtin.

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If your linux has a /proc/config.gz

That has all the built modules. Copy it elsewhere and unzip it. Open the file everything with a "=M" is built as a module. Everything with a "=Y" is statically built.

hwinfo will list the "Driver:" check the above file to see if it is statically built.

FYI: All statically built drivers are always loaded into memory and ready for action. Without the corresponding hardware they will not do anything, but use memory.

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What if there is no /proc/config.gz? – JohnnyFromBF Apr 5 '13 at 13:25
Ok I just found a .config file in the directory where I compiled the kernel, that's obviously what you meant. – JohnnyFromBF Apr 5 '13 at 13:51
This file also exists here: /boot/config-$(uname -r). – JohnnyFromBF Apr 5 '13 at 13:58

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