Character devices:
  1 mem
  2 pty
  3 ttyp
  4 ttyS
  5 cua
  7 vcs
 10 misc
 13 input
 14 sound
 29 fb
 56 adb
128 ptm
136 pts
180 usb

Block devices:
  1 ramdisk
  3 ide0
  7 loop
 22 ide1
