# lsmod
Module                  Size  Used by    Tainted: P
pwc                    44160   0 (unused)
videodev                8576   0 [pwc]
usb-storage            68240   0 (unused)
sd_mod                 12500   0 (unused)
scsi_mod               70408   1 [usb-storage sd_mod]
ehci-hcd               20556   0 (unused)
uhci                   29044   0 (unused)
usb-ohci               19252   0 (unused)
usbcore                75288   1 [pwc usb-storage ehci-hcd uhci usb-ohci]
switch-robo             4620   0 (unused)
switch-core             4864   0 [switch-robo]
diag                   21920   0 (unused)