From: Greg Hosler <hosler@lugs.org.sg>
To: linux-kernel@vger.kernel.org
Cc: jgarzik@mandrakesoft.com
Subject: AC'97 (VT82C686A) & IRQ reassignment (I/O APIC)
Date: Mon, 30 Apr 2001 23:38:25 +0800 (SGT) [thread overview]
Message-ID: <XFMail.010430233825.hosler@lugs.org.sg> (raw)
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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next reply other threads:[~2001-04-30 15:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-30 15:38 Greg Hosler [this message]
2001-04-30 15:41 ` Richard B. Johnson
2001-04-30 16:38 ` Jeff Garzik
2001-04-30 17:32 ` Richard B. Johnson
2001-04-30 18:19 ` Adrian Cox
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