diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.21pre5/include/linux/ac97_codec.h linux.21pre5-ac3/include/linux/ac97_codec.h
--- linux/include/linux/ac97_codec.h	2003-02-27 18:39:41.000000000 +0000
+++ linux/include/linux/ac97_codec.h	2003-03-01 19:23:29.000000000 +0000
@@ -222,6 +222,8 @@
 	int dev_mixer; 
 	int type;
 
+	int modem:1;
+	
 	struct ac97_ops *codec_ops;
 
 	/* controller specific lower leverl ac97 accessing routines */
@@ -237,6 +239,9 @@
 	int stereo_mixers;
 	int record_sources;
 
+	/* Property flags */
+	int flags;
+
 	int bit_resolution;
 
 	/* OSS mixer interface */
@@ -265,6 +270,8 @@
 	int (*amplifier)(struct ac97_codec *codec, int on);
 	/* Digital mode control */
 	int (*digital)(struct ac97_codec *codec, int format);
+#define AC97_DELUDED_MODEM	1	/* Audio codec reports its a modem */
+#define AC97_NO_PCM_VOLUME	2	/* Volume control is missing 	   */
 };