diff --git a/sys/dev/audio_if.h b/sys/dev/audio_if.h
index 64c11ce7434f..2bd6e396ae10 100644
--- a/sys/dev/audio_if.h
+++ b/sys/dev/audio_if.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: audio_if.h,v 1.39 2002/03/07 14:37:02 kent Exp $	*/
+/*	$NetBSD: audio_if.h,v 1.40 2002/03/11 14:59:57 kent Exp $	*/
 
 /*
  * Copyright (c) 1994 Havard Eidnes.
@@ -54,9 +54,9 @@ struct audio_params {
 	/*
 	 * The following four members represent what format is used in a
 	 * hardware.  If hw_sample_rate != sample_rate || hw_channels !=
-	 * channels, the audio framework may adjust data.  Encoding and
+	 * channels, the audio framework converts data.  Encoding and
 	 * precision are converted in sw_code().
-	 * set_param() should set correct values to them if no conversion is
+	 * set_params() should set correct values to them if no conversion is
 	 * neede.
 	 */
 	u_long	hw_sample_rate;
@@ -72,20 +72,20 @@ struct audio_hw_if {
 	int	(*open)(void *, int);	/* open hardware */
 	void	(*close)(void *);	/* close hardware */
 	int	(*drain)(void *);	/* Optional: drain buffers */
-	
+
 	/* Encoding. */
 	/* XXX should we have separate in/out? */
 	int	(*query_encoding)(void *, struct audio_encoding *);
 
 	/* Set the audio encoding parameters (record and play).
-	 * Return 0 on success, or an error code if the 
+	 * Return 0 on success, or an error code if the
 	 * requested parameters are impossible.
 	 * The values in the params struct may be changed (e.g. rounding
 	 * to the nearest sample rate.)
 	 */
-        int	(*set_params)(void *, int, int, struct audio_params *,
+	int	(*set_params)(void *, int, int, struct audio_params *,
 		    struct audio_params *);
-  
+
 	/* Hardware may have some say in the blocksize to choose */
 	int	(*round_blocksize)(void *, int);
 
@@ -115,20 +115,20 @@ struct audio_hw_if {
 
 	int	(*getdev)(void *, struct audio_device *);
 	int	(*setfd)(void *, int);
-	
+
 	/* Mixer (in/out ports) */
 	int	(*set_port)(void *, mixer_ctrl_t *);
 	int	(*get_port)(void *, mixer_ctrl_t *);
 
 	int	(*query_devinfo)(void *, mixer_devinfo_t *);
-	
+
 	/* Allocate/free memory for the ring buffer. Usually malloc/free. */
 	void	*(*allocm)(void *, int, size_t, int, int);
 	void	(*freem)(void *, void *, int);
 	size_t	(*round_buffersize)(void *, int, size_t);
 	paddr_t	(*mappage)(void *, void *, off_t, int);
 
-	int 	(*get_props)(void *); /* device properties */
+	int	(*get_props)(void *); /* device properties */
 
 	int	(*trigger_output)(void *, void *, void *, int,
 		    void (*)(void *), void *, struct audio_params *);