From 720036a5bb1d6f7b491da5a37a30b3e7e11147e0 Mon Sep 17 00:00:00 2001
From: malc <av1474@comtv.ru>
Date: Thu, 10 Sep 2009 20:05:59 +0400
Subject: [PATCH] Add information w.r.t default GUS IRQ assigment

---
 qemu-doc.texi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/qemu-doc.texi b/qemu-doc.texi
index 2f566b6..99d7f0d 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -199,6 +199,20 @@ QEMU uses YM3812 emulation by Tatsuyuki Satoh.
 QEMU uses GUS emulation(GUSEMU32 @url{http://www.deinmeister.de/gusemu/})
 by Tibor "TS" Schütz.
 
+Not that, by default, GUS shares IRQ(7) with parallel ports and so
+qemu must be told to not have parallel ports to have working GUS
+
+@example
+qemu dos.img -soundhw gus -parallel none
+@end example
+
+Alternatively:
+@example
+qemu dos.img -device gus,irq=5
+@end example
+
+Or some other unclaimed IRQ.
+
 CS4231A is the chip used in Windows Sound System and GUSMAX products
 
 @c man end
-- 
2.7.4