Re: LANANA: To Pending Device Number Registrants

H. Peter Anvin
2001-05-17T00:13:42Z

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."