Confusion over device major:minor numbering...
I have been looking at the devices in /dev with the hope of understanding
what drivers I have on my machine. I have been under the (mistaken?)
understanding that major:minor numbers were supposed to be unique for each
device, yet this doesn't seem to be the case. For instance:
1:1 belongs to both /dev/mem and /dev/ram1
1:2 belongs to both /dev/kmem and /dev/ram2
1:7 belongs to both /dev/full and dev/ram7
A different type of the same class of confusion stems from:
8:16 is used by both /dev/sda16 and /dev/sdb
and every other scsi device overlaps in this fashion.
Can someone please releave my cluelessness and explain what "little" point
I am missing?
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