Message-ID: <XFMail.010430233825.hosler@lugs.org.sg>
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Date: Mon, 30 Apr 2001 23:38:25 +0800 (SGT)
Reply-To: Greg Hosler <hosler@lugs.org.sg>
From: Greg Hosler <hosler@lugs.org.sg>
To: linux-kernel@vger.kernel.org
Subject: AC'97 (VT82C686A) & IRQ reassignment (I/O APIC)
Cc: jgarzik@mandrakesoft.com
Sender: linux-kernel-owner@vger.kernel.org

The AC'97 has an IRQ register which allows for IRQ's 1, and 3 thru 14
(page 107 of the VT82C686 datasheet, under section "Offset 3C, Interrupt Line")

The problem I'm seeing is that on a SMB machine, the IRQ's get reassigned by
the I/O APIC code, and my AC'97 gets assigned an IRQ of 18 (which won't fit into
4 bits :(

Is there any way to reassign an IRQ to one that teh AC'97 will be happy with ?

Does any other device already have to do this ?

thx, and rgds,

-Greg

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| Greg Hosler                           i-net:  hosler@lugs.org.sg    |
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