Re: devfs unable to handle permission: 2.4.17-pre[4,5] / ALSA-0.9.0beta[9,10]

From: Richard Gooch (rgooch@ras.ucalgary.ca)
Date: Fri Dec 07 2001 - 10:59:58 EST


Roman Zippel writes:
> Hi,
>
> On Thu, 6 Dec 2001, Richard Gooch wrote:
>
> > Two possibilities:
> >
> > - the module is trying to register "unknown" twice. The old devfs core
> > was forgiving about this (although it was always a driver bug to
> > attempt to create a duplicate). The new core won't let you do that.
> > Error 17 is EEXIST. Please fix the driver
> >
> > - something in user-space created the "unknown" inode before the
> > driver could create it. This is a configuration bug.
>
> Option 3:
> Turn a user generated entry into a kernel generated one and return
> 0. Prepopulating devfs was a valid option so far, you cannot simply
> change this during a stable kernel release.

Well, no, it was never a valid option. It was always a bug. In any
case, the stricter behaviour isn't preventing people from using their
drivers, it's just issuing a warning. The user-space created device
node still works.

                                Regards,

                                        Richard....
Permanent: rgooch@atnf.csiro.au
Current: rgooch@ras.ucalgary.ca
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