>> What is the communication between user space and kernel
>> that transports device identities?
> It doesn't change, the same symbolic names still work.
But today, unless you think of devfs or so, device identities
are not transported by symbolic names. They are given by
device numbers.
[Yes, symbolic names have a certain secondary role, e.g. in error
messages, or perhaps to indicate the boot device.]
Andries
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