Re: [PATCH] 2.5.14 IDE 56

From: Linus Torvalds (
Date: Tue May 07 2002 - 12:24:40 EST

On Tue, 7 May 2002 wrote:
> One interesting thing here would be to have some optional link between
> the bus-oriented device tree and the function-oriented tree (ie. devfs
> or simply /dev).

There isn't any 1:1 thing - the device/bus-oriented one should _not_ show
virtual things like partitions etc that have no relevance for a driver,
while /dev (and thus devfs) obviously think that that is the important
part, much more important than how we actually got to the device.

I think we need to have some way of getting a mapping from /dev ->
devicefs, but I don't think that has to be a filesystem thing (it might
even be as simple as just one ioctl or new system call: 'get the "path" of
this device').

There aren't that many people who actually care, I suspect.


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