diff --git a/apps/modconfig.c b/apps/modconfig.c
new file mode 100644
index 0000000..ce1c95b
--- /dev/null
+++ b/apps/modconfig.c
@@ -0,0 +1,268 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <linux/types.h>
+#include <getopt.h>
+#include <ctype.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef int16_t s16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+#include "../ddbridge/ddbridge-mci.h"
+#include "../ddbridge/ddbridge-ioctl.h"
+
+struct mconf {
+	int set_output;
+	int set_channels;
+	int fd;
+	
+	struct mci_command channels;
+	struct mci_command stream;
+	struct mci_command output;
+};
+
+void strim(char *s)
+{
+	int l = strlen(s);
+
+	while (l && isspace(s[l-1]))
+		l--;
+	s[l] = 0;
+}
+
+void parse(char *fname, char *sec, void *priv, void (*cb)(void *, char *, char *))
+{
+	char line[256], csec[80], par[80], val[80], *p;
+	FILE *f;
+
+	if ((f = fopen(fname, "r")) == NULL)
+		return;
+	while ((p = fgets(line, sizeof(line), f))) {
+		if (*p == '\r' || *p == '\n' || *p == '#')
+			continue;
+		if (*p == '[') {
+			if ((p = strtok(line + 1, "]")) == NULL)
+				continue;
+			strncpy(csec, p, sizeof(csec));
+			if (!strcmp(sec, csec) && cb)
+				cb(priv, NULL, NULL);
+			continue;
+		}
+		if (!(p = strtok(line, "=")))
+			continue;
+		while (isspace(*p))
+			p++;
+		strncpy(par, p, sizeof(par));
+		strim(par);
+		if (!(p = strtok(NULL, "=")))
+			continue;
+		while (isspace(*p))
+			p++;
+		strncpy (val, p, sizeof(val));
+		strim(val);
+		if (!strcmp(sec, csec) && cb)
+			cb(priv, par, val);
+	}
+	if (!strcmp(sec, csec) && cb)
+		cb(priv, NULL, NULL);
+	fclose(f);
+}
+
+int mci_cmd(int dev, struct mci_command *cmd)
+{
+	int ret;
+	struct ddb_mci_msg msg;
+
+	msg.link = 0;
+	memcpy(&msg.cmd, cmd, sizeof(msg.cmd));
+	ret = ioctl(dev, IOCTL_DDB_MCI_CMD, &msg);
+	if (ret < 0) {
+		printf("mci_cmd error %d\n", errno);
+		return ret;
+	}
+	return ret;
+}
+
+struct mci_command msg_channels = {
+	.mod_command = MOD_SETUP_CHANNELS,	
+	.mod_channel = 0,
+	.mod_stream = 0,
+	.mod_setup_channels[0] = {
+		.flags = MOD_SETUP_FLAG_FIRST|MOD_SETUP_FLAG_LAST|MOD_SETUP_FLAG_VALID,
+		.standard = MOD_STANDARD_DVBT_8,
+		.num_channels = 25,
+		.frequency = 474000000,
+	},
+};
+
+struct mci_command msg_stream = {
+	.mod_command = MOD_SETUP_STREAM,	
+	.mod_channel = 1,
+	.mod_stream = 0,
+	.mod_setup_stream = {
+		.standard = MOD_STANDARD_DVBT_8,
+		.fft_size = 1,
+		.guard_interval = 0,
+	},
+};
+
+struct mci_command msg_output = {
+	.mod_command = MOD_SETUP_OUTPUT,
+	.mod_channel = 0,
+	.mod_stream = 0,
+	.mod_setup_output = {
+		.connector = MOD_CONNECTOR_F,
+		.num_channels = 16,
+		.unit = MOD_UNIT_DBUV,
+		.channel_power = 5000,
+	},
+};
+
+void output_cb(void *priv, char *par, char *val)
+{
+	struct mconf *mc = (struct mconf *) priv;
+
+	if (!par && !val) {
+		mc->set_output = 1;
+		return;
+	}		
+	if (!strcasecmp(par, "connector")) {
+		if (!strcasecmp(val, "F")) {
+			mc->output.mod_setup_output.connector = MOD_CONNECTOR_F;
+		} else if (!strcasecmp(val, "SMA")) {
+			mc->output.mod_setup_output.connector = MOD_CONNECTOR_SMA;
+		} else if (!strcasecmp(val, "OFF")) {
+			mc->output.mod_setup_output.connector = MOD_CONNECTOR_OFF;
+		} else
+			printf("invalid connector\n");
+	} else if (!strcasecmp(par, "power")) {
+		mc->output.mod_setup_output.channel_power = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "channels")) {
+		mc->output.mod_setup_output.num_channels = strtol(val, NULL, 10);
+	}else if (!strcasecmp(par, "unit")) {
+		if (!strcasecmp(val, "DBUV")) {
+			mc->output.mod_setup_output.unit = MOD_UNIT_DBUV;
+		} else if (!strcasecmp(val, "DBM")) {
+			mc->output.mod_setup_output.unit = MOD_UNIT_DBM;
+		} else
+			printf("invalid unit\n");
+	} else
+		printf("invalid output parameter: %s\n", par);
+}
+
+void channels_cb(void *priv, char *par, char *val)
+{
+	struct mconf *mc = (struct mconf *) priv;
+
+	if (!par && !val) {
+		mc->set_channels = 1;
+		return;
+	}		
+	if (!strcasecmp(par, "frequency")) {
+		mc->channels.mod_setup_channels[0].frequency = strtol(val, NULL, 10);
+		printf("frequency = %u\n", mc->channels.mod_setup_channels[0].frequency);
+	} else if (!strcasecmp(par, "channels")) {
+		mc->channels.mod_setup_channels[0].num_channels = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "standard")) {
+		mc->channels.mod_setup_channels[0].standard = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "offset")) {
+		mc->channels.mod_setup_channels[0].offset = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "bandwidth")) {
+		mc->channels.mod_setup_channels[0].bandwidth = strtol(val, NULL, 10);
+		mc->channels.mod_setup_channels[0].offset =
+			mc->channels.mod_setup_channels[0].bandwidth / 2;
+	} else
+		printf("invalid channels parameter: %s\n", par);
+}
+
+void streams_cb(void *priv, char *par, char *val)
+{
+	struct mconf *mc = (struct mconf *) priv;
+
+	if (!par && !val) {
+		return;
+	}		
+	if (!strcasecmp(par, "fft_size")) {
+		mc->stream.mod_setup_stream.fft_size = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "guard_interval")) {
+		mc->stream.mod_setup_stream.guard_interval = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "standard")) {
+		mc->stream.mod_setup_stream.standard = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "stream_format")) {
+		mc->stream.mod_setup_stream.stream_format = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "symbol_rate")) {
+		mc->stream.mod_setup_stream.symbol_rate = strtol(val, NULL, 10);
+	} else if (!strcasecmp(par, "stream")) {
+		mc->stream.mod_stream = strtol(val, NULL, 10);
+		printf("set stream %u to channel %u\n", mc->stream.mod_stream, mc->stream.mod_channel);
+		mci_cmd(mc->fd, &mc->stream);
+	} else if (!strcasecmp(par, "channel")) {
+		mc->stream.mod_channel = strtol(val, NULL, 10);
+	} else
+		printf("invalid streams parameter: %s\n", par);
+}
+
+int main(int argc, char*argv[])
+{
+	int fd = -1;
+	char fn[128];
+	uint32_t device = 0;
+	uint32_t frequency = 0;
+	char *configname = "modulator.conf";
+	struct mconf mc;
+
+	memset(&mc, 0, sizeof(mc));
+	mc.channels = msg_channels;
+	mc.stream = msg_stream;
+	mc.output = msg_output;
+	
+	while (1) {
+		int cur_optind = optind ? optind : 1;
+		int option_index = 0;
+		int c;
+		static struct option long_options[] = {
+			{"device", required_argument, 0, 'd'},
+			{"config", required_argument, 0, 'c'},
+			{0, 0, 0, 0}
+		};
+                c = getopt_long(argc, argv, "d:c:",
+				long_options, &option_index);
+		if (c == -1)
+			break;
+		switch (c) {
+		case 'd':
+			device = strtoul(optarg, NULL, 0);
+			break;
+		case 'c':
+			configname = optarg;
+			break;
+		default:
+			break;
+		}
+	}
+	if (optind < argc) {
+		printf("too many arguments\n");
+		exit(1);
+	}
+	snprintf(fn, 127, "/dev/ddbridge/card%u", device);
+	fd = open(fn, O_RDWR);
+	if (fd < 0)
+		return -1;
+	mc.fd = fd;
+	parse(configname, "output", (void *) &mc, output_cb);
+	if (mc.set_output)
+		mci_cmd(fd, &mc.output);
+	parse(configname, "channels", (void *) &mc, channels_cb);
+	if (mc.set_channels)
+		mci_cmd(fd, &mc.channels);
+	parse(configname, "streams", (void *) &mc, streams_cb);
+}
diff --git a/ddbridge/ddbridge-mci.h b/ddbridge/ddbridge-mci.h
index d770a6d..5645a9c 100644
--- a/ddbridge/ddbridge-mci.h
+++ b/ddbridge/ddbridge-mci.h
@@ -185,6 +185,60 @@
 
 #define MCI_SUCCESS(status)     ((status & MCI_STATUS_UNSUPPORTED) == 0)
 
+/********************************************************/
+
+#define MOD_SETUP_CHANNELS      (0x60)
+#define MOD_SETUP_OUTPUT        (0x61)
+#define MOD_SETUP_STREAM        (0x62)
+
+#define MOD_SETUP_FLAG_FIRST    (0x01)
+#define MOD_SETUP_FLAG_LAST     (0x02)
+#define MOD_SETUP_FLAG_VALID    (0x80)
+
+#define MOD_STANDARD_GENERIC    (0x00)
+#define MOD_STANDARD_DVBT_8     (0x01)
+#define MOD_STANDARD_DVBT_7     (0x02)
+#define MOD_STANDARD_DVBT_6     (0x03)
+
+#define MOD_CONNECTOR_OFF       (0x00)
+#define MOD_CONNECTOR_F         (0x01)
+#define MOD_CONNECTOR_SMA       (0x02)
+
+#define MOD_UNIT_DBUV           (0x00)
+#define MOD_UNIT_DBM            (0x01)
+
+#define MOD_FORMAT_DEFAULT      (0x00)
+#define MOD_FORMAT_IQ16         (0x01)
+#define MOD_FORMAT_IQ8          (0x02)
+#define MOD_FORMAT_IDX8         (0x03)
+#define MOD_FORMAT_TS           (0x04)
+
+struct mod_setup_channels {
+	u8   flags;
+	u8   standard;
+	u8   num_channels;
+	u8   rsvd;
+	u32  frequency;
+	u32  offset;            /* used only when Standard == 0 */
+	u32  bandwidth;         /* used only when Standard == 0 */   
+};
+
+struct mod_setup_stream {
+	u8   standard;
+	u8   stream_format;
+	u8   rsvd[2];
+	u32  symbol_rate;        /* only used when Standard doesn't define a fixed symbol rate */
+	u8   fft_size;           /* 0 = 2K, 1 = 8K  (2K yet supported) */
+	u8   guard_interval;     /* 0 = 1/32, 1 = 1/16, 2 = 1/8, 3 = 1/4  (DVB-T Encoding) */
+};
+
+struct mod_setup_output {
+	u8   connector;         /* 0 = OFF, 1 = F, 2 = SMA */ 
+	u8   num_channels;      /* max active channels, determines max power for each channel. */
+	u8   unit;              /* 0 = dBµV, 1 = dBm, */
+	u8   rsvd;
+	s16  channel_power;
+};
 
 /********************************************************/
 
@@ -197,6 +251,12 @@ struct mci_command {
 			u8 demod;
 			u8 output;
 		};
+		struct {
+			u8 mod_command;
+			u8 mod_channel;
+			u8 mod_stream;
+			u8 mod_rsvd1;
+		};
 	};
 	union {
 		u32 params[31];
@@ -344,6 +404,10 @@ struct mci_command {
 		struct {
 			u8   select;        // 0 = Data PLP, 1 = Common PLP, only DVB-T2 and DVB-C2
 		} get_bb_header;
+
+		struct mod_setup_channels mod_setup_channels[4];
+		struct mod_setup_stream mod_setup_stream;
+		struct mod_setup_output mod_setup_output;
 	};
 };