Lsmod
Linux command that lists loaded kernel modules
lsmod is a command on Linux systems that lists each loadable kernel module that is loaded.
Example output from 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, usbhidThe Module column contains the name of a module. The Size column indicates the size in bytes of a module (not memory used). The Used by column indicates how many times the module is in use by running programs. To the right of that is a list of other modules which refer to this one, but this list is sometimes incomplete. If the module controls its own unloading via a can_unload routine then the used-by count shows as -1, irrespective of the actual count.
Sources and credits
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