Character devices:
  1 mem
  4 /dev/vc/0
  4 tty
  4 ttyS
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  5 ttyprintk
  7 vcs
 10 misc
 13 input
 21 sg
 29 fb
 89 i2c
 99 ppdev
108 ppp
128 ptm
136 pts
180 usb
189 usb_device
202 cpu/msr
203 cpu/cpuid
204 ttyMAX
226 drm
229 hvc
240 ipmidev
241 hidraw
242 aux
243 vfio
244 bsg
245 watchdog
246 ptp
247 pps
248 cec
249 rtc
250 dax
251 dimmctl
252 ndctl
253 tpm
254 gpiochip

Block devices:
  2 fd
  7 loop
  8 sd
  9 md
 11 sr
 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
202 xvd
253 device-mapper
254 mdp
259 blkext