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
128 ptm
136 pts
180 usb
188 ttyUSB
189 usb_device
204 ttyAMA
226 drm
234 nvme-generic
235 nvme
236 uio
237 hidraw
238 ttyDBC
239 usbmon
240 vfio-dev
241 vfio
242 ttyTHS
243 ttyMSM
244 bsg
245 watchdog
246 ptp
247 pps
248 rtc
249 cxl
250 dma_heap
251 dax
252 tpm
253 ttyMV
254 gpiochip
511 dtrace/helper

Block devices:
  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
252 device-mapper
253 bcache
254 mdp
259 blkext