linux-kernel - Re: MODULE_DEVICE_TABLE(isapnp, ...) does nothing

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Date:	Tue, 24 Nov 2009 08:21:40 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Ondrej Zary <linux@...nbow-software.org>,
	linux-kernel@...r.kernel.org,
	Jon Masters <jonathan@...masters.org>,
	Jaroslav Kysela <perex@...ex.cz>, Greg KH <gregkh@...e.de>,
	Kay Sievers <kay.sievers@...y.org>
Subject: Re: MODULE_DEVICE_TABLE(isapnp, ...) does nothing

On Mon, 23 Nov 2009 07:10:22 pm Takashi Iwai wrote:
> At Mon, 23 Nov 2009 13:59:53 +1030, Rusty Russell wrote:
> > Two things are required:
> > 1) Modify file2alias to add aliases for isapnp.  This is pretty easy.
> > 2) Expose the isapnp devices in sysfs where udev will match them up
> >    (/sys/bus/isa/devices/<dev>/modalias I guess?)
> 
> There is non-pnp ISA bus, so I'm afraid "isa" may conflict.
> I suppose "isapnp" would be a safer choice.

Without pnp, I don't think you can enumerate the ISA bus. Hence I chose
"isa:" in the hope that udev would "just work" if isapnp created the
modalias under /sys/bus/isa...

But Kay says there's a pnp bus (who knew?).  I don't know what he means
by unfixable aliases tho, since it's all in the kernel source so we can
change it at any time?

Thanks,
Rusty.
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