lsmod

lsmod is a command on Linux systems. It shows which loadable kernel modules are currently loaded.

Abridged example output: 

# lsmod
Module                  Size  Used by
af_packet              27392  2 
8139too                30592  0 
snd_cs46xx             96872  3 
snd_pcm_oss            55808  1 
snd_mixer_oss          21760  2 snd_pcm_oss
ip6table_filter         7424  1 
ip6_tables             19728  1 ip6table_filter
ipv6                  290404  22 
xfs                   568384  4 
sis900                 18052  5 
libata                169920  1 pata_sis
scsi_mod              158316  3 usb_storage,sd_mod,libata
usbcore               155312  6 ohci_hcd, usb_storage, usbhid

"Module" denotes the name of the module. "Size" denotes the size of the module (not memory used).[1] "Used by" shows that number of times the module is currently in use by running programs. Next to this is a list of other modules which refer to this one. The "Used by" list is sometimes incomplete.[2] If the module controls its own unloading via a can_unload routine then the use count displayed by lsmod is always -1, irrespective of the real use count.

See also

References
  1. "Kernel Module Utilities". Archived from the original on 11 September 2016. Retrieved 31 Jan 2013.
  2. user502515. "Re: How to get complete dependency list of kernel modules at runtime". Stack Overflow. Retrieved 11 October 2012.


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