diff --git a/src/common.h b/src/common.h
index fb0d9a6..24d1890 100644
--- a/src/common.h
+++ b/src/common.h
@@ -1,4 +1,6 @@
 
+#define MAX_DRV_PARM 10
+
 struct options {
 	int start;		/* start order */
 	int amplify;		/* amplification factor */
@@ -15,6 +17,7 @@ struct options {
 	char *drv_id;		/* sound driver ID */
 	char *out_file;		/* output file name */
 	char *ins_path;		/* instrument path */
+	char *driver_parm[MAX_DRV_PARM]; /* driver parameters */
 	char mute[XMP_MAX_CHANNELS];
 };
 
diff --git a/src/main.c b/src/main.c
index c28600e..fb30468 100644
--- a/src/main.c
+++ b/src/main.c
@@ -166,8 +166,8 @@ int main(int argc, char **argv)
 	if (options.silent) {
 		sound = &sound_null;
 	} else {
-		sound = select_sound_driver(options.drv_id,
-				&options.freq, &options.format);
+		sound = select_sound_driver(options.drv_id, &options.freq,
+				&options.format, options.driver_parm);
 	}
 
 	if (sound == NULL) {
diff --git a/src/options.c b/src/options.c
index 98df0a4..60883fa 100644
--- a/src/options.c
+++ b/src/options.c
@@ -19,7 +19,6 @@
 #include "list.h"
 
 extern char *optarg;
-static int o, i;
 static char *token;
 
 #ifdef HAVE_SYS_RTPRIO_H
@@ -50,21 +49,6 @@ static void usage(char *s)
 
 	printf("Usage: %s [options] [modules]\n", s);
 
-#if 0
-	printf("\nRegistered module loaders:\n");
-	xmp_get_fmt_info(&fmt);
-	list_wrap(NULL, 3, 78, 1);
-
-	for (i = 0, f = fmt; f; i++, f = f->next) {
-		snprintf(buf, 80, "%s (%s)", f->id, f->tracker);
-		list_wrap(buf, 3, 0, 1);
-	}
-
-	snprintf(buf, 80, "[%d registered loaders]", i);
-	list_wrap(buf, 3, 0, 0);
-	printf("\n");
-#endif
-
 	printf("\nAvailable drivers:\n");
 
 	list_for_each(head, &sound_driver_list) {
@@ -146,8 +130,10 @@ static struct option lopt[] = {
 void get_options(int argc, char **argv, struct options *options)
 {
 	int optidx = 0;
+	int dparm = 0;
+	int o;
+
 #define OPTIONS "a:b:cD:d:f:hI:iLlM:mno:qRS:s:T:t:uVv"
-	i = 0;
 	while ((o = getopt_long(argc, argv, OPTIONS, lopt, &optidx)) != -1) {
 		switch (o) {
 		case 'a':
@@ -161,11 +147,9 @@ void get_options(int argc, char **argv, struct options *options)
 		case 'c':
 			options->out_file = "-";
 			break;
-#if 0
 		case 'D':
-			xmp_set_driver_parameter(opt, optarg);
+			options->driver_parm[dparm++] = optarg;
 			break;
-#endif
 		case 'd':
 			options->drv_id = optarg;
 			break;
diff --git a/src/sound.c b/src/sound.c
index 75c2a27..831c7ff 100644
--- a/src/sound.c
+++ b/src/sound.c
@@ -38,7 +38,7 @@ void init_sound_drivers()
 #endif
 }
 
-struct sound_driver *select_sound_driver(char *pref, int *rate, int *format)
+struct sound_driver *select_sound_driver(char *pref, int *rate, int *format, char **parm)
 {
 	struct list_head *head;
 	struct sound_driver *sd;
@@ -47,7 +47,7 @@ struct sound_driver *select_sound_driver(char *pref, int *rate, int *format)
 		list_for_each(head, &sound_driver_list) {
 			sd = list_entry(head, struct sound_driver, list);
 			if (strcmp(sd->id, pref) == 0) {
-				if (sd->init(rate, format) == 0) {
+				if (sd->init(rate, format, parm) == 0) {
 					return sd;
 				}
 			}
@@ -56,7 +56,7 @@ struct sound_driver *select_sound_driver(char *pref, int *rate, int *format)
 		list_for_each(head, &sound_driver_list) {
 			sd = list_entry(head, struct sound_driver, list);
 			/* Probing */
-			if (sd->init(rate, format) == 0) {
+			if (sd->init(rate, format, parm) == 0) {
 				/* found */
 				return sd;
 			}
diff --git a/src/sound.h b/src/sound.h
index 0f72744..4f35350 100644
--- a/src/sound.h
+++ b/src/sound.h
@@ -2,13 +2,14 @@
 #define __SOUND_H
 
 #include <xmp.h>
+#include <stdio.h>
 #include "list.h"
 
 struct sound_driver {
 	char *id;
 	char *description;
 	char **help;
-	int (*init)(int *, int *);
+	int (*init)(int *, int *, char **);
         void (*deinit)(void);
 	void (*play)(void *, int);
         void (*flush)(void);
@@ -17,7 +18,23 @@ struct sound_driver {
         struct list_head list;
 };
 
+#define parm_init() { char *token; for (; *parm; parm++) { \
+	char s[80]; strncpy(s, *parm, 80); \
+	token = strtok(s, ":="); token = strtok(NULL, "");
+#define parm_end() } }
+#define parm_error() do { \
+	fprintf(stderr, "xmp: incorrect parameters in -D %s\n", s); \
+	exit(-4); } while (0)
+#define chkparm0(x,y) { \
+	if (!strcmp(s, x)) { \
+	    if (token != NULL) parm_error(); else { y; } } }
+#define chkparm1(x,y) { \
+	if (!strcmp(s, x)) { \
+	    if (token == NULL) parm_error(); else { y; } } }
+#define chkparm2(x,y,z,w) { if (!strcmp(s, x)) { \
+	if (2 > sscanf(token, y, z, w)) parm_error(); } }
+
 void init_sound_drivers(void);
-struct sound_driver *select_sound_driver(char *, int *, int *);
+struct sound_driver *select_sound_driver(char *, int *, int *, char **);
 
 #endif
diff --git a/src/sound_alsa.c b/src/sound_alsa.c
index af8b7c4..6ebc957 100644
--- a/src/sound_alsa.c
+++ b/src/sound_alsa.c
@@ -5,8 +5,7 @@
 
 static snd_pcm_t *pcm_handle;
 
-
-static int init(int *rate, int *format)
+static int init(int *rate, int *format, char **parm)
 {
 	snd_pcm_hw_params_t *hwparams;
 	int ret;
@@ -15,6 +14,12 @@ static int init(int *rate, int *format)
 	unsigned int ptime = 50000;	/* 50ms */
 	char *card_name = "default";
 
+	parm_init();
+	chkparm1("buffer", btime = 1000 * strtoul(token, NULL, 0));
+	chkparm1("period", btime = 1000 * strtoul(token, NULL, 0));
+	chkparm1("card", card_name = token);
+	parm_end();
+
 	if ((ret = snd_pcm_open(&pcm_handle, card_name,
 		SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
 		fprintf(stderr, "Unable to initialize ALSA pcm device: %s\n",
diff --git a/src/sound_bsd.c b/src/sound_bsd.c
index 95781f3..e55fbb3 100644
--- a/src/sound_bsd.c
+++ b/src/sound_bsd.c
@@ -19,13 +19,7 @@
 
 static int audio_fd;
 
-static char *help[] = {
-	"gain=val", "Audio output gain (0 to 255)",
-	"buffer=val", "Audio buffer size (default is 32768)",
-	NULL
-};
-
-static int init(int *rate, int *format)
+static int init(int *rate, int *format, char **parm)
 {
 	audio_info_t ainfo;
 	int gain = 128;
@@ -100,6 +94,12 @@ static void onresume()
 {
 }
 
+static char *help[] = {
+	"gain=val", "Audio output gain (0 to 255)",
+	"buffer=val", "Audio buffer size (default is 32768)",
+	NULL
+};
+
 struct sound_driver sound_bsd = {
 	"bsd",
 	"BSD PCM audio",
diff --git a/src/sound_coreaudio.c b/src/sound_coreaudio.c
index 719f13b..138620c 100644
--- a/src/sound_coreaudio.c
+++ b/src/sound_coreaudio.c
@@ -123,14 +123,13 @@ OSStatus render_proc(void *inRefCon,
  */
 
 
-static int init(int *sampling_rate, int *format)
+static int init(int *sampling_rate, int *format, char **parm)
 {
 	struct xmp_options *o = &ctx->o;
 	AudioStreamBasicDescription ad;
 	Component comp;
 	ComponentDescription cd;
 	AURenderCallbackStruct rc;
-	//char *token, **parm;
 	OSStatus err;
 	UInt32 size, max_frames;
 
diff --git a/src/sound_null.c b/src/sound_null.c
index 402cfa3..05b1a7a 100644
--- a/src/sound_null.c
+++ b/src/sound_null.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include "sound.h"
 
-static int init(int *sampling_rate, int *format)
+static int init(int *sampling_rate, int *format, char **parm)
 {
 	return 0;
 }
diff --git a/src/sound_oss.c b/src/sound_oss.c
index 1cf2313..553519c 100644
--- a/src/sound_oss.c
+++ b/src/sound_oss.c
@@ -40,14 +40,9 @@
 #  endif
 #endif
 
-static int audio_fd;
+struct sound_driver sound_oss;
 
-static char *help[] = {
-	"frag=num,size", "Set the number and size of fragments",
-	"dev=<device_name>", "Audio device to use (default /dev/dsp)",
-	"nosync", "Don't flush OSS buffers between modules",
-	NULL
-};
+static int audio_fd;
 
 static int fragnum, fragsize;
 static int do_sync = 1;
@@ -115,24 +110,21 @@ static void setaudio(int *rate, int *format)
 	}
 }
 
-static int init(int *rate, int *format)
+static int init(int *rate, int *format, char **parm)
 {
 	char *dev_audio[] = { "/dev/dsp", "/dev/sound/dsp" };
 	audio_buf_info info;
-	//static char buf[80];
-	//char *token, **parm;
+	static char buf[80];
 	int i;
 
 	fragnum = 16;		/* default number of fragments */
 	i = 1024;		/* default size of fragment */
 	
-#if 0
 	parm_init();
 	chkparm2("frag", "%d,%d", &fragnum, &i);
 	chkparm1("dev", dev_audio[0] = token);
 	chkparm0("nosync", do_sync = 0);
 	parm_end();
-#endif
 
 	for (fragsize = 0; i >>= 1; fragsize++) ;
 	if (fragsize < 4)
@@ -146,15 +138,12 @@ static int init(int *rate, int *format)
 
 	setaudio(rate, format);
 
-#if 0
 	if (ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info) == 0) {
 		snprintf(buf, 80, "%s [%d fragments of %d bytes]",
-			 drv_oss.description, info.fragstotal,
+			 sound_oss.description, info.fragstotal,
 			 info.fragsize);
-		drv_oss.description = buf;
+		sound_oss.description = buf;
 	}
-#endif
-	ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info);
 
 	return 0;
 }
@@ -206,6 +195,13 @@ static void onresume()
 #endif
 }
 
+static char *help[] = {
+	"frag=num,size", "Set the number and size of fragments",
+	"dev=<device_name>", "Audio device to use (default /dev/dsp)",
+	"nosync", "Don't flush OSS buffers between modules",
+	NULL
+};
+
 struct sound_driver sound_oss = {
 	"oss",
 	"OSS PCM audio",
diff --git a/src/sound_sndio.c b/src/sound_sndio.c
index 7563390..7567f39 100644
--- a/src/sound_sndio.c
+++ b/src/sound_sndio.c
@@ -22,7 +22,7 @@
 
 static struct sio_hdl *hdl;
 
-static int init(int *rate, int *format)
+static int init(int *rate, int *format, char **parm)
 {
 	struct sio_par par, askpar;
 
diff --git a/src/sound_win32.c b/src/sound_win32.c
index a9a3aba..3509898 100644
--- a/src/sound_win32.c
+++ b/src/sound_win32.c
@@ -31,11 +31,6 @@ static WORD freebuffer;				/*  */
 static WORD nextbuffer;				/* next buffer to be mixed */
 static int num_buffers;
 
-static char *help[] = {
-	"buffers=val", "Number of buffers (default 10)",
-	NULL
-};
-
 static void show_error(int res)
 {
 	char *msg;
@@ -75,18 +70,17 @@ static void CALLBACK wave_callback(HWAVEOUT hwo, UINT uMsg, DWORD dwInstance,
 	}
 }
 
-static int init(int *sampling_rate, int *format)
+static int init(int *sampling_rate, int *format, char **parm)
 {
 	MMRESULT res;
 	WAVEFORMATEX wfe;
 	int i;
-	//char *token, **parm;
 
 	num_buffers = 10;
 	
-	//parm_init();
-	//chkparm1("buffers", num_buffers = strtoul(token, NULL, 0));
-	//parm_end();
+	parm_init();
+	chkparm1("buffers", num_buffers = strtoul(token, NULL, 0));
+	parm_end();
 
 	if (num_buffers > MAXBUFFERS)
 		num_buffers = MAXBUFFERS;
@@ -171,6 +165,11 @@ static void onresume()
 {
 }
 
+static char *help[] = {
+	"buffers=val", "Number of buffers (default 10)",
+	NULL
+};
+
 struct sound_driver sound_win32 = {
 	"win32",
 	"Windows WinMM",