Messages in this thread | | | Date | Fri, 18 Jun 1999 00:03:06 -0700 | From | "H. Peter Anvin" <> | Subject | Re: UUIDs (and devfs and major/minor numbers) |
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Dan Hollis wrote: > > On Thu, 17 Jun 1999, H. Peter Anvin wrote: > > Dan Hollis wrote: > > > On 18 Jun 1999, H. Peter Anvin wrote: > > > > Actually, there is. The /dev directory is a mapping table between the > > > > kernel interface (as well as providing a store for permissions), and > > > > devfs removes this. > > > This is not as useful or important as you try to make it out to be. > > Useful to whom? (Not you, I gather.) > > If you start playing around with device names, expect severe application > breakage. > > Or maybe you have some interesting justification to start renaming > /dev/tty* into other things? > > Or lets rename /dev/null on a whim and see how useful that is. > > -Dan
You totally don't get it, do you? First of all, there is the permissions issue. Second of all, say I have a device called, say /dev/keyboard. Now I want to simulate keyboard input with a user-space process, or redirect the keyboard input from say, a serial port. That's what a level of indirection is for.
-hpa
-- "The user's computer downloads the ActiveX code and simulates a 'Blue Screen' crash, a generally benign event most users are familiar with and that would not necessarily arouse suspicions." -- Security exploit description on http://www.zks.net/p3/how.asp
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