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I'm currently attempting to remove the usbserial module in order to install a new driver module. When I attempt to remove the module I get the following issue:

[root@localhost xr21v141x-lnx-3.0-pak]# modprobe -r usbserial
FATAL: Module usbserial is builtin

How can I remove the usbserial module?

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up vote 4 down vote accepted

That means the module was compiled into the kernel. If you want to be able to unload it, you will have to compile a new kernel and have it built as a dynamically (un)loadable module instead.

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Does this mean it's impossible to install a new driver module which uses usbserial? – sj755 Jan 20 '13 at 16:36
A module which uses usbserial will be fine. One which is intended to replace usbserial -- I guess you can try, but as a guess I would say probably not. – goldilocks Jan 20 '13 at 16:52

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