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
108 ppp
128 ptm
136 pts
180 usb
189 usb_device
204 ttyMAX
226 drm
234 cec
235 lirc
236 ipmidev
237 hidraw
238 ttyDBC
239 ttyDBC
240 nvme-generic
241 nvme
242 wwan_port
243 bsg
244 watchdog
245 remoteproc
246 ptp
247 pps
248 rtc
249 dma_heap
250 dax
251 dimmctl
252 ndctl
253 tpm
254 gpiochip
511 aux

Block devices:
  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
230 zvol
253 device-mapper
254 mdp
259 blkext