# lsmod |more Module Size Used by autofs4 24389 2 hidp 23105 2 rfcomm 42457 0 l2cap 29633 10 hidp,rfcomm bluetooth 53925 5 hidp,rfcomm,l2cap sunrpc 144253 1 dm_multipath 21577 0 video 19269 0 sbs 18533 0 —- - - —- - - You can also find out if particular device driver or kernel modules is loaded and running on your Linux by displaying contents of /proc/modules file: # lsmod |more Module Size Used by autofs4 24389 2 hidp 23105 2 rfcomm 42457 0 l2cap 29633 10 hidp,rfcomm bluetooth 53925 5 hidp,rfcomm,l2cap sunrpc 144253 1 dm_multipath 21577 0 video 19269 0 sbs 18533 0 —- - - —- - -