diff --git a/ddbridge/ddbridge-core.c b/ddbridge/ddbridge-core.c
index 7fbf91a..7bc0d9f 100644
--- a/ddbridge/ddbridge-core.c
+++ b/ddbridge/ddbridge-core.c
@@ -2336,15 +2336,9 @@ static void input_write_dvb(struct ddb_input *input,
 	}
 }
 
-#ifdef DDB_USE_WORK
-static void input_work(struct work_struct *work)
-{
-	struct ddb_dma *dma = container_of(work, struct ddb_dma, work);
-#else
 static void input_tasklet(unsigned long data)
 {
 	struct ddb_dma *dma = (struct ddb_dma *)data;
-#endif
 	struct ddb_input *input = (struct ddb_input *)dma->io;
 	struct ddb *dev = input->port->dev;
 	unsigned long flags;
@@ -2377,17 +2371,10 @@ static void input_handler(unsigned long data)
 	 * just copy pointers and ACK. So, there is no need to go
 	 * through the tasklet scheduler.
 	 */
-	#ifdef DDB_USE_WORK
-	if (input->redi)
-		queue_work(ddb_wq, &dma->work);
-	else
-		input_work(&dma->work);
-	#else
 	if (input->redi)
 		tasklet_schedule(&dma->tasklet);
 	else
 		input_tasklet(data);
-	#endif
 }
 
 #else
@@ -2396,23 +2383,13 @@ static void input_handler(void *data)
 	struct ddb_input *input = (struct ddb_input *)data;
 	struct ddb_dma *dma = input->dma;
 
-#ifdef DDB_USE_WORK
-	queue_work(ddb_wq, &dma->work);
-#else
 	input_tasklet((unsigned long)dma);
-#endif
 }
 #endif
 
-#ifdef DDB_USE_WORK
-static void output_work(struct work_struct *work)
-{
-	struct ddb_dma *dma = container_of(work, struct ddb_dma, work);
-#else
 static void output_tasklet(unsigned long data)
 {
 	struct ddb_dma *dma = (struct ddb_dma *)data;
-#endif
 	struct ddb_output *output = (struct ddb_output *)dma->io;
 	struct ddb *dev = output->port->dev;
 	unsigned long flags;
@@ -2454,11 +2431,7 @@ static void output_handler(void *data)
 	struct ddb_output *output = (struct ddb_output *)data;
 	struct ddb_dma *dma = output->dma;
 
-#ifdef DDB_USE_WORK
-	queue_work(ddb_wq, &dma->work);
-#else
 	tasklet_schedule(&dma->tasklet);
-#endif
 }
 #endif
 
@@ -2489,11 +2462,7 @@ static void ddb_dma_init(struct ddb_io *io, int nr, int out, int irq_nr)
 	spin_lock_init(&dma->lock);
 	init_waitqueue_head(&dma->wq);
 	if (out) {
-#ifdef DDB_USE_WORK
-		INIT_WORK(&dma->work, output_work);
-#else
 		tasklet_init(&dma->tasklet, output_tasklet, (unsigned long)dma);
-#endif
 		dma->regs = rm->odma->base + rm->odma->size * nr;
 		dma->bufregs = rm->odma_buf->base + rm->odma_buf->size * nr;
 		if (io->port->dev->link[0].info->type == DDB_MOD &&
@@ -2507,11 +2476,7 @@ static void ddb_dma_init(struct ddb_io *io, int nr, int out, int irq_nr)
 			dma->div = 1;
 		}
 	} else {
-#ifdef DDB_USE_WORK
-		INIT_WORK(&dma->work, input_work);
-#else
 		tasklet_init(&dma->tasklet, input_tasklet, (unsigned long)dma);
-#endif
 		dma->regs = rm->idma->base + rm->idma->size * nr;
 		dma->bufregs = rm->idma_buf->base + rm->idma_buf->size * nr;
 		dma->num = dma_buf_num;
@@ -2705,21 +2670,12 @@ void ddb_ports_release(struct ddb *dev)
 
 	for (i = 0; i < dev->port_num; i++) {
 		port = &dev->port[i];
-#ifdef DDB_USE_WORK
-		if (port->input[0] && port->input[0]->dma)
-			cancel_work_sync(&port->input[0]->dma->work);
-		if (port->input[1] && port->input[1]->dma)
-			cancel_work_sync(&port->input[1]->dma->work);
-		if (port->output && port->output->dma)
-			cancel_work_sync(&port->output->dma->work);
-#else
 		if (port->input[0] && port->input[0]->dma)
 			tasklet_kill(&port->input[0]->dma->tasklet);
 		if (port->input[1] && port->input[1]->dma)
 			tasklet_kill(&port->input[1]->dma->tasklet);
 		if (port->output && port->output->dma)
 			tasklet_kill(&port->output->dma->tasklet);
-#endif
 	}
 }
 
@@ -2823,9 +2779,6 @@ irqreturn_t ddb_irq_handler(int irq, void *dev_id)
 			irq_handle_msg(dev, s);
 		if (s & 0x0fffff00) {
 			irq_handle_io(dev, s);
-#ifdef DDB_TEST_THREADED
-		ret = IRQ_WAKE_THREAD;
-#endif
 		}
 	} while ((s = ddbreadl(dev, INTERRUPT_STATUS)));
 
@@ -2873,15 +2826,6 @@ irqreturn_t ddb_irq_handler_v2(int irq, void *dev_id)
 	return ret;
 }
 
-#ifdef DDB_TEST_THREADED
-static irqreturn_t irq_thread(int irq, void *dev_id)
-{
-	/* struct ddb *dev = (struct ddb *) dev_id; */
-
-	return IRQ_HANDLED;
-}
-#endif
-
 /****************************************************************************/
 /****************************************************************************/
 /****************************************************************************/
diff --git a/ddbridge/ddbridge-main.c b/ddbridge/ddbridge-main.c
index f33e3e4..8fb53d0 100644
--- a/ddbridge/ddbridge-main.c
+++ b/ddbridge/ddbridge-main.c
@@ -255,17 +255,9 @@ static int __devinit ddb_irq_init(struct ddb *dev)
 			return stat;
 		}
 	} else {
-#ifdef DDB_TEST_THREADED
-		stat = request_threaded_irq(pci_irq_vector(dev->pdev, 0),
-					    dev->pdev->irq, ddb_irq_handler,
-					    irq_thread,
-					    irq_flag,
-					    "ddbridge", (void *)dev);
-#else
 		stat = request_irq(pci_irq_vector(dev->pdev, 0),
 				   ddb_irq_handler,
 				   irq_flag, "ddbridge", (void *)dev);
-#endif
 		if (stat < 0)
 			return stat;
 	}
diff --git a/ddbridge/ddbridge.h b/ddbridge/ddbridge.h
index 5ee78a3..b1d3a14 100644
--- a/ddbridge/ddbridge.h
+++ b/ddbridge/ddbridge.h
@@ -23,9 +23,6 @@
 #ifndef _DDBRIDGE_H_
 #define _DDBRIDGE_H_
 
-/* #define DDB_USE_WORK */
-/*#define DDB_TEST_THREADED*/
-
 #include <linux/version.h>
 
 #if (KERNEL_VERSION(3, 8, 0) <= LINUX_VERSION_CODE)
@@ -205,11 +202,7 @@ struct ddb_dma {
 	u32                    div;
 	u32                    bufval;
 
-#ifdef DDB_USE_WORK
-	struct work_struct     work;
-#else
 	struct tasklet_struct  tasklet;
-#endif
 	spinlock_t             lock; /* DMA lock */
 	wait_queue_head_t      wq;
 	int                    running;
diff --git a/lib/ddzap.c b/lib/ddzap.c
index 06b6391..5620abc 100644
--- a/lib/ddzap.c
+++ b/lib/ddzap.c
@@ -12,6 +12,7 @@
 #include <stdint.h>
 #include <math.h>
 #include <time.h>
+#include <inttypes.h>
 
 char line_start[16] = "";
 char line_end[16]   = "\r";
@@ -427,7 +428,10 @@ int main(int argc, char **argv)
 			get_ts = 0;
 			break;
 		case 'h':
-		    fprintf(fout,"ddzap [-d delivery_system] [-p polarity] [-c config_dir] [-f frequency(Hz)]\n"
+		    fprintf(fout,"ddzap [-d delivery_system] [-p polarity] [-c config_dir]\n"
+			       "      [-f frequency(Hz for terr./kHz for SAT)]\n"
+			       "      [-m 16APSK/32APSK/64APSK/128APSK/256APSK]\n"
+			       "          (only needed for higher modulations than 8PSK) on some cards\n"
 			       "      [-b bandwidth(Hz)] [-s symbol_rate(Hz)]\n"
 			       "      [-g gold_code] [-r root_code] [-i id] [-n device_num]\n"
 			       "      [-o (write dvr to stdout)]\n"
@@ -503,9 +507,10 @@ int main(int argc, char **argv)
 			str = dddvb_get_strength(fe);
 			cnr = dddvb_get_cnr(fe);
 			
-			printf("stat=%02x, str=%lld.%03llddB, snr=%lld.%03llddB \n",
-			       stat, (long long int)str/1000, (long long int) abs(str%1000),
-			       (long long int) cnr/1000, (long long int)abs(cnr%1000));
+			printf("stat=%02x, str=%" PRId64 ".%03udBm, "
+			       "snr=%" PRId64 ".%03uddB \n",
+			       stat, str/1000, abs(str%1000),
+			       cnr/1000, abs(cnr%1000));
 		sleep(1);
 		}
 	} else {
diff --git a/lib/src/config.c b/lib/src/config.c
index 53e9943..05e23d9 100644
--- a/lib/src/config.c
+++ b/lib/src/config.c
@@ -41,7 +41,7 @@ int parse_config(struct dddvb *dd, char *name, char *sec,
 		memcpy(fname + config_len, "dddvb.conf", 11);
 	
 	if ((f = fopen (fname, "r")) == NULL) {
-		printf("config file %s not found\n", fname);
+		dprintf(2, "config file %s not found\n", fname);
 		return -1;
 	}
 	
diff --git a/lib/src/dddvb.c b/lib/src/dddvb.c
index aa85a8b..b011a04 100644
--- a/lib/src/dddvb.c
+++ b/lib/src/dddvb.c
@@ -8,7 +8,7 @@ LIBDDDVB_EXPORTED struct dddvb *global_dd = NULL;
 LIBDDDVB_EXPORTED pthread_mutex_t dddvb_mutex = PTHREAD_MUTEX_INITIALIZER; 
 
 void __attribute__ ((constructor)) setup(void) {
-	printf("SETUP\n");
+	//printf("SETUP\n");
 }
 
 LIBDDDVB_EXPORTED struct dddvb_fe *dddvb_fe_alloc_num(struct dddvb *dd, uint32_t type, uint32_t num)
diff --git a/lib/src/dvb.c b/lib/src/dvb.c
index adcf52f..76a70c3 100644
--- a/lib/src/dvb.c
+++ b/lib/src/dvb.c
@@ -231,7 +231,7 @@ static int set_en50607(struct dddvb_fe *fe, uint32_t freq, uint32_t sr,
 	uint32_t input = 3 & (sat >> 6);
 	int fd = fe->fd;
 	
-	//printf("input = %u, sat = %u\n", input, sat&0x3f);
+	dbgprintf(DEBUG_DVB, "input = %u, sat = %u\n", input, sat&0x3f);
 	hor &= 1;
 	cmd.msg[1] = slot << 3;
 	cmd.msg[1] |= ((t >> 8) & 0x07);
@@ -323,7 +323,7 @@ static int tune_sat(struct dddvb_fe *fe)
 
 		if (input != DDDVB_UNDEF) {
 			input = 3 & (input >> 6);
-			printf("input = %u\n", input);
+			dbgprintf(DEBUG_DVB, "input = %u\n", input);
 		}
 		diseqc(fe->fd, lnb, fe->param.param[PARAM_POL], hi);
 		set_fe_input(fe, freq, fe->param.param[PARAM_SR], ds, input);
@@ -349,7 +349,7 @@ static int tune_c(struct dddvb_fe *fe)
 	struct dtv_properties c;
 	int ret;
 
-	printf("tune_c()\n");
+	dbgprintf(DEBUG_DVB, "tune_c()\n");
 	set_property(fe->fd, DTV_DELIVERY_SYSTEM, SYS_DVBC_ANNEX_A);
 
 	c.num = ARRAY_SIZE(p);
@@ -376,7 +376,7 @@ static int tune_j83b(struct dddvb_fe *fe)
 	struct dtv_properties c;
 	int ret;
 
-	printf("tune_j83b()\n");
+	dbgprintf(DEBUG_DVB, "tune_j83b()\n");
 	set_property(fe->fd, DTV_DELIVERY_SYSTEM, SYS_DVBC_ANNEX_B);
 
 	c.num = ARRAY_SIZE(p);
@@ -542,7 +542,7 @@ static int tune(struct dddvb_fe *fe)
 {
 	int ret;
 
-	printf("tune()\n");
+	dbgprintf(DEBUG_DVB, "tune()\n");
 	switch (fe->param.param[PARAM_MSYS]) {
 	case SYS_DVBS:
 	case SYS_DVBS2:
diff --git a/lib/src/tools.c b/lib/src/tools.c
index 9592095..9c787b8 100644
--- a/lib/src/tools.c
+++ b/lib/src/tools.c
@@ -13,7 +13,7 @@ int sendlen(int sock, char *buf, int len)
 
 	for (todo = len; todo; todo -= done, buf += done)
 		if ((done = send(sock, buf, todo, 0)) < 0) {
-			printf("sendlen error\n");
+			dprintf(2, "sendlen error\n");
 			return done;
 		}
 	return len;