OSS fix

[Eric Pouech <pouech-eric@wanadoo.fr>]

as discussed on wine-devel with Rod Taylor, BSD always enables full 
duplex for OSS pcm devices
so, this patch works around the error which gets returned in that case

A+
--
Eric Pouech

Name:          oss
ChangeLog:     work around not implemented ioctl in BSD
License:       X11
GenDate:       2003/04/04 18:15:51 UTC
ModifiedFiles: dlls/winmm/wineoss/audio.c
===================================================================
RCS file: /home/cvs/cvsroot/wine/wine/dlls/winmm/wineoss/audio.c,v
retrieving revision 1.81
diff -u -u -r1.81 audio.c
--- dlls/winmm/wineoss/audio.c	17 Mar 2003 00:00:53 -0000	1.81
+++ dlls/winmm/wineoss/audio.c	3 Apr 2003 19:55:52 -0000
@@ -278,7 +278,11 @@
     /* turn full duplex on if it has been requested */
     if (ossdev->open_access == O_RDWR && ossdev->full_duplex) {
         rc = ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0);
-        if (rc != 0) {
+        /* on *BSD, as full duplex is always enabled by default, this ioctl
+         * will fail with EINVAL
+         * so, we don't consider EINVAL an error here
+         */
+        if (rc != 0 && errno != EINVAL) {
 	    ERR("ioctl(%s, SNDCTL_DSP_SETDUPLEX) failed (%s)\n", ossdev->dev_name, strerror(errno));
             goto error;
 	}