Re: [PATCH] [PNP] 'modalias' sysfs export

From: Andrew Morton
Date: Sat Mar 11 2006 - 20:38:32 EST


Pierre Ossman <drzeus-list@xxxxxxxxx> wrote:
>
> Here is a patch for doing multi line modalias for PNP devices. This will
> break udev, so that needs to be updated first.
>
> I had a longer look at the card part and it seems that module aliases
> cannot be reliably used for it. Not without restructuring the system at
> least. The possible combinations explode when you notice that the driver
> ids needs to be just at subset of the card, without any ordering.
>
> If I got my calculations right, a PNP card would have to have roughly
> 2^(2n) aliases, where n is the number of device ids. So right now, I
> lean towards only adding modalias support for the non-card part of the
> PNP layer.
>
> Andrew, do you want a fix for the patch in -mm or can you remove the
> part of it that modifies drivers/pnp/card.c by yourself?

I assume you mean that the drivers/pnp/card.c patch of
pnp-modalias-sysfs-export.patch needs to be removed and this patch applies
on top of the result.

But I don't want to break udev.
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