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
 29 fb
116 alsa
128 ptm
136 pts
180 usb
188 ttyUSB
189 usb_device
202 cpu/msr
203 cpu/cpuid
226 drm
235 chardev
236 binder
237 hidraw
238 wwan_port
239 nvme-generic
240 nvme
241 aux
242 bsg
243 watchdog
244 remoteproc
245 ptp
246 pps
247 cec
248 lirc
249 rtc
250 dma_heap
251 dax
252 dimmctl
253 ndctl
254 gpiochip

Block devices:
  8 sd
 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
259 blkext
==================================================
I already told you 0 times Hello world!
I already told you 1 times Hello world!
==================================================
[Fri Oct 28 15:47:13 2022] I was assigned major number 235.
[Fri Oct 28 15:47:13 2022] Device created on /dev/chardev
[Fri Oct 28 15:47:13 2022] Goodbye