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
 29 fb
116 alsa
128 ptm
136 pts
180 usb
188 ttyUSB
189 usb_device
202 cpu/msr
203 cpu/cpuid
226 drm
239 dimmctl
240 ndctl
241 virtio-portsdev
242 hidraw
243 ttyDBC
244 usbmon
245 wwan_port
246 bsg
247 watchdog
248 ptp
249 pps
250 rtc
251 dma_heap
252 dax
253 tpm
254 gpiochip

Block devices:
  9 md
253 virtblk
254 mdp
259 blkext