linux-kernel - Re: [PATCH 2/2] sound: make OSS device number claiming optional

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Message-ID: <20090805101551.6ee053e5@lxorguk.ukuu.org.uk>
Date:	Wed, 5 Aug 2009 10:15:51 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tejun Heo <teheo@...e.de>
Cc:	Greg KH <greg@...ah.com>, Al Viro <viro@....linux.org.uk>,
	Takashi Iwai <tiwai@...e.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	cguthrie@...driva.org
Subject: Re: [PATCH 2/2] sound: make OSS device number claiming optional

On Wed, 05 Aug 2009 15:40:42 +0900
Tejun Heo <teheo@...e.de> wrote:

> If any OSS support is enabled, regardless of built-in or module,
> sound_core claims full OSS major number (that is, the old 0-255
> region) to trap open attempts and request sound module automatically.
> This feature is redundant as chrdev already has such mechanism and no
> longer used by modern distros.  This preemptive claiming prevents
> alternative OSS implementation.
> 
> This patch makes the preclaiming optional and adds a config option
> SOUND_OSS_CORE_PRECLAIM and kernel parameter soundcore.preclaim_oss to
> control whether preclaim is enabled or not.  This allows distros and
> developers to try new things without rebuilding kernel.

This looks like a random private devel hack sand I don't see why it's
appropriate for mainstream, especially as these "new things" don't exist
mainstream either.
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