don't disable the Sound Blaster legacy mode by default, as this breaks

apm(4).  add a flag that disables Sound Blaster legacy mode, this might
be necessary for some floppies. help from jmc, ok+test hshoexer.

1 files changed, 14 insertions, 2 deletions

diff --git a/share/man/man4/yds.4 b/share/man/man4/yds.4
index cde7098efaa..9dc3a8b1c9b 100644
--- a/share/man/man4/yds.4
+++ b/share/man/man4/yds.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: yds.4,v 1.3 2003/06/06 10:29:41 jmc Exp $
+.\"	$OpenBSD: yds.4,v 1.4 2004/02/19 11:08:11 markus Exp $
 .\"
 .\" Copyright (c) 2001 Aaron Campbell.
 .\" All rights reserved.
@@ -30,7 +30,7 @@
 .Nm yds
 .Nd Yamaha DS-XG sound hardware driver
 .Sh SYNOPSIS
-.Cd "yds* at pci? dev ? function ?"
+.Cd "yds* at pci? dev ? function ? flags 0x0000"
 .Cd "audio* at yds?"
 .Cd "opl* at yds?"
 .Sh DESCRIPTION
@@ -38,6 +38,18 @@ The
 .Nm
 driver supports Yamaha DS-XG based sound chips, as found in, e.g., many
 Sony Vaio notebooks.
+.Pp
+The flags can be used to pass additional information
+to the 
+.Nm
+driver.
+.Pp
+A value of 0x1000 forces the driver to disable the Sound Blaster
+legacy mode.
+This is needed to make the floppy work on some machines
+but is disabled by default because it is known to break
+.Xr apm 4
+support.
 .Sh SEE ALSO
 .Xr ac97 4 ,
 .Xr audio 4 ,