/TP # cat /proc/devices
Character devices:
  1 mem
  4 /dev/vc/0
  4 tty
  4 ttyS
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  7 vcs
 10 misc
 13 input
 14 sound
 90 mtd
116 alsa
128 ptm
136 pts
180 usb

245 audio
246 smd_core
247 sw_cons
248 sw_prod
249 auddac
250 scard1
251 scard0
252 spi
253 gpio
254 i2c

Block devices:
  1 ramdisk
  8 sd
 31 mtdblock
 65 sd