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

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Message-ID: <ac3eb2510911240057h2d2ca308pfeb9c8a94920d543@mail.gmail.com>
Date:	Tue, 24 Nov 2009 09:57:28 +0100
From:	Kay Sievers <kay.sievers@...y.org>
To:	Ondrej Zary <linux@...nbow-software.org>
Cc:	Takashi Iwai <tiwai@...e.de>,
	Rusty Russell <rusty@...tcorp.com.au>,
	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 Tue, Nov 24, 2009 at 08:29, Ondrej Zary <linux@...nbow-software.org> wrote:
> On Monday 23 November 2009, Kay Sievers wrote:
>> 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. :)
>
>
> Added these two lines to modules.alias (and deleted modules.alias.bin):
> alias acpi*:RTL8019:* ne
> alias pnp:dRTL8019* ne
>
> and it works. This works too:
> alias acpi*:PNP80d6:* ne
> alias pnp:dPNP80d6* ne

Oh, your box has acpi mapped pnp aliases for this device? You can see
your ID string somewhere in this list?
  grep . /sys/bus/acpi/devices/*/modalias

If not, is it in the pnp bus list?
  grep . /sys/bus/pnp/devices/*/id

Thanks,
Kay
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