Re: Devfs, was Re: Migrating to larger numbers
Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 9 Jun 1999 02:03:21 +0100 (BST)
> Anything specific? It provides all kinds of neat tricks. For example,
> if all your CD-ROMs devices are unloaded and you have module
> autoloading, then to find all CD-ROMs on the system, you just do:
> opendir ("/dev/ide/cd");
> loop;
> opendir ("/dev/sr");
> loop;
>
> and your directory scanning code knows that each and every entry
> (besides "." and "..":-) is a Genuine CD-ROM[tm] that actually exists
> on your system. No need to process a large directory, speculatively
> opening device nodes to see if there's some hardware behind them.
I just wonder if this shouldnt be generated by userspace, by ensuring
the right helpful info is in /proc etc
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