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

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Message-ID: <ac3eb2510911230613w5543e98bg4203a1fbd7269931@mail.gmail.com>
Date:	Mon, 23 Nov 2009 15:13:27 +0100
From:	Kay Sievers <kay.sievers@...y.org>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	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>
Subject: Re: MODULE_DEVICE_TABLE(isapnp, ...) does nothing

On Mon, Nov 23, 2009 at 09:40, Takashi Iwai <tiwai@...e.de> wrote:
> At Mon, 23 Nov 2009 13:59:53 +1030,
> Rusty Russell wrote:
>>
>> On Mon, 23 Nov 2009 07:31:57 am Ondrej Zary wrote:
>> > The problem is that
>> > scripts/mod/file2alias.c simply ignores isapnp.
>>
>> AFAICT it always has, and noone has complained until now.  Perhaps something
>> was still reading /lib/modules/`uname -r`/modules.isapnpmap?
>
> I don't think modules.isapnpmap is needed again.
> The question came from the fact that the isapnp device wasn't loaded
> automatically.

All the map files are not uses for anything these days. Ideally,
depmod should just stop creating these dead files.

> But, I thought Kay already added isapnp support sometime ago, but it
> didn't seem to get in...  Kay?

No, we don't even have proper modaliases for the pnp bus
(/sys/bus/pnp) and the alias string for pnp in the modules have a
broken and unfixable format. PNP autoloading is all handled by the
acpi modaliases these days. This is the first time in years I hear
anybody asking for hotplug setups of plain old pnp devices. :)

Thanks,
Kay
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