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SubjectRe: IDE-Floppy and devfs
I did report this back a month or so ago. Another work around is to have a
device node (22,0 in my case) around to bang on for a sec. After having
the kernel poke the device, the appropriate devfs node appears
automagically.

My 0.02USD.

Josh

On Sun, 22 Oct 2000, Andreas Franck wrote:

> Hi Paul, hi linux-kernel audience,
>
> some szggestion for the upcoming 2.4 release ide-floppy driver: It
> really works
> nice without devfs, but the ide-floppy behaviour in connection with
> devfs is
> a bit strange.
>
> If ide-floppy is compiled as a module, which is loaded (or autoloaded by
> some smart
> devfs rule) when no disk is in the drive, NO devfs entries are created,
> so there
> is no way to access the drive. Even worse, when a disk is inserted, the
> module is
> still loaded so there is no way to access the disk! Only manual
> unloading and reloading
> of the module will do the trick.
>
> I'd suggest something like the cdrom approach: There is always one
> device node for
> removable devices, regardless of any media present in the drive. This
> could
> be /dev/ide/host0/bus1/target1/lun0/floppy or something like that.
>
> Accessing this file should trigger a probe for the media (which may be
> partitioned
> in ide-floppy devices, which makes life a bit harder). By this probe,
> the
> /dev/ide/.../lun0/disc and /dev/ide/.../lun0/part4 (or any other
> partitions)
> might be created, if there is a medium in the drive; a symlink to the
> "right" partition
> (part4 for normal ZIP disks, AFAIK) shhould be placed in a directory of
> its own,
> for example /dev/ide/floppy/c0b1t1u0, and anotherone perhaps in
> /dev/idefloppy/floppy0
> or something.
>
> I have already implemented the first half of this (creation of the
> floppy node which will
> trigger the partition scan when accessed), I have attached my patch for
> review here.
> Its still quite hackish, but I'm sure you can follow my ideas with what
> I explained above
> - if not, don't hesitate to ask.
>
> ->- snip -<-
>
> --
> ->>>----------------------- Andreas Franck --------<<<-
> ---<<<---- Andreas.Franck@post.rwth-aachen.de --->>>---
> ->>>---- Keep smiling! ----------------------------<<<-
> -
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