The following commands can be used to remove a kernel module

• modprobe
• rmmod (this article)

The lsmod command can be used to list the modules that are currently loaded into the kernel.

~]# lsmod | sort
arc4         12608  0
ata_generic  12910  0
ata_piix     35038  0
auth_rpcgss  59314  1  nfsd
bcma         51886  0
bluetooth   372944  5  bnep
. . .

The rmmod command can be used to remove a module. If no standard error is returned, the rmmod command without the -v or --verbose flag may return no output. I like to include the -v or --verbose flag just so that I get some output.

~]# rmmod bcma --verbose