From: Andrey Borzenkov <arvidjaar@mail.ru>
To: linux-hotplug@vger.kernel.org
Subject: Re: DRIVER vs. PHYSDEVDRIVER for block susbsystem
Date: Sat, 25 Mar 2006 19:34:21 +0000 [thread overview]
Message-ID: <200603252234.22408.arvidjaar@mail.ru> (raw)
In-Reply-To: <200603252125.00463.arvidjaar@mail.ru>
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On Saturday 25 March 2006 22:24, Kay Sievers wrote:
> > > No DRIVER matches up the whole chain of devices. But the driver value
> > > of block is "" which matches successfully the non-match of the values
> > > it is compared against.
> > >
> > > The rules have changed and should work that way:
> > >
> > > http://www.kernel.org/git/?p=linux/hotplug/udev.git;a=blob;hb=HEAD;f=et
> > >c/ud ev/60-persistent-storage.rules
> >
> > Those rules will never match for ide-cs or ide-floppy as intended (while
> > this "fixes" it for ide-cdrom, sure :)
>
> Care to explain?
>
Sure. As you stated before, 'driver value of block is ""'. The "" can never
match "ide-cd|ide-floppy". And non-block are filtered away two lines before.
> > > We should not introduce any new users of the "device" link or the
> > > PHYSDEV* values, they will go away some day along with the odd idea
> > > to distinguish between class and physical devices.
[...]
> > In this case adding driver for block devices looks like the right thing,
> > does not it? Strictly speaking, it could be generalized to "if device
> > symlink exists, fetch driver from it"; this will go away when sysfs
> > layout will have changed.
>
> No, the block devices don't have a driver.
>
Is not this the "odd idea to distinguish between class and physical
device"? :)
Regards
- -andrey
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next prev parent reply other threads:[~2006-03-25 19:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-25 18:24 DRIVER vs. PHYSDEVDRIVER for block susbsystem Andrey Borzenkov
2006-03-25 18:50 ` Kay Sievers
2006-03-25 19:10 ` Andrey Borzenkov
2006-03-25 19:24 ` Kay Sievers
2006-03-25 19:34 ` Andrey Borzenkov [this message]
2006-03-25 19:43 ` Kay Sievers
2006-03-25 20:07 ` Andrey Borzenkov
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