查看当前的正在使用的中断：
# cat /proc/interrupts
CPU0
1: 822214 VIC as352x Timer Tick
4: 179 VIC AS352X DMA
12: 159 VIC as352x-afe-i2c
13: 0 VIC as352x-audio
14: 0 VIC as352x-audio
15: 18267 VIC as352x-uart
Err: 0
查看当前已经加载的设备：
# cat /proc/devices
Character devices:
1 mem
2 pty
3 ttyp
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
89 i2c
90 mtd
116 alsa
128 ptm
136 pts
200 clock
Block devices:
1 ramdisk
7 loop
31 mtdblock
93 nftl