Re: LANANA: To Pending Device Number Registrants
H. Peter Anvin (hpa@transmeta.com)
Wed, 16 May 2001 17:12:22 -0700
Richard Gooch wrote:
>
> Alan Cox writes:
> > > Argh! What I wrote in text is what I meant to say. The code didn't
> > > match. No wonder people seemed to be missing the point. So the line of
> > > code I actually meant was:
> > > if (strcmp (buffer + len - 3, "/cd") != 0) {
> >
> > drivers/kitchen/bluetooth/vegerack/cd
> >
> > its the cabbage dicer still ..
>
> No, because it violates the standard. Just as we can define a major
> number to have a specific meaning, we can define a name in the devfs
> namespace to have a specific meaning.
>
> Yes, it's broken if someone writes a cabbage dicer driver and uses
> "cd" as the leaf node name for devfs.
>
> Yes, it's broken if someone writes a cabbage dicer driver and uses
> the same major as the IDE CD-ROM or SCSI CD-ROM drivers.
>
But unlike the latter case, your case isn't even self-enforcing.
Furthermore, it puts a lot of future restrictions on the namespace, and
take it from me, you don't want to do that.
That, of course, is in addition to everything else...
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
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