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
 21 sg
 29 fb
 99 ppdev
108 ppp
128 ptm
136 pts
180 usb
188 ttyUSB
189 usb_device
202 cpu/msr
203 cpu/cpuid
226 drm
238 hidraw
239 ttyDBC
240 nvme-generic
241 nvme
242 bsg
243 pvfs2-req
244 watchdog
245 remoteproc
246 ptp
247 pps
248 lirc
249 rtc
250 dma_heap
251 dax
252 tpm
253 pwm
254 gpiochip
261 accel

Block devices:
  1 ramdisk
  7 loop
  8 sd
  9 md
 11 sr
 43 nbd
 65 sd
 66 sd
 67 sd
 68 sd
 69 sd
 70 sd
 71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
147 drbd
251 device-mapper
252 rbd
253 virtblk
254 mdp
259 blkext