diff --git a/host/hackrf-tools/src/hackrf_clock.c b/host/hackrf-tools/src/hackrf_clock.c
index bd3344dd..5acfcc6a 100644
--- a/host/hackrf-tools/src/hackrf_clock.c
+++ b/host/hackrf-tools/src/hackrf_clock.c
@@ -35,7 +35,7 @@ typedef int bool;
 #define CLOCK_UNDEFINED 0xFF
 #define REGISTER_INVALID 32767
 
-int parse_int(char* s, uint16_t* const value) {
+int parse_int(char* s, uint8_t* const value) {
 	uint_fast8_t base = 10;
 	char* s_end;
 	long long_value;
@@ -55,7 +55,7 @@ int parse_int(char* s, uint16_t* const value) {
 	s_end = s;
 	long_value = strtol(s, &s_end, base);
 	if( (s != s_end) && (*s_end == 0) ) {
-		*value = (uint16_t)long_value;
+		*value = (uint8_t)long_value;
 		return HACKRF_SUCCESS;
 	} else {
 		return HACKRF_ERROR_INVALID_PARAM;
@@ -101,7 +101,7 @@ int si5351c_write_register(
 #define SI5351C_CLK_SRC_MULTISYNTH_0_4  2
 #define SI5351C_CLK_SRC_MULTISYNTH_SELF 3
 
-void print_clk_control(uint8_t clk_ctrl) {
+void print_clk_control(uint16_t clk_ctrl) {
 	uint8_t clk_src, clk_pwr;
 	printf("\tclock control = ");
 	if(clk_ctrl & SI5351C_CLK_POWERDOWN)
@@ -249,9 +249,9 @@ int main(int argc, char** argv) {
 	hackrf_device* device = NULL;
 	int opt, option_index = 0;
 	bool read = false;
-	uint16_t clock = CLOCK_UNDEFINED;
+	uint8_t clock = CLOCK_UNDEFINED;
 	bool clkout = false;
-	uint16_t clkout_enable;
+	uint8_t clkout_enable;
 	const char* serial_number = NULL;
 
 	int result = hackrf_init();
diff --git a/host/hackrf-tools/src/hackrf_debug.c b/host/hackrf-tools/src/hackrf_debug.c
index ad6cbf78..27d03556 100644
--- a/host/hackrf-tools/src/hackrf_debug.c
+++ b/host/hackrf-tools/src/hackrf_debug.c
@@ -157,7 +157,7 @@ int si5351c_write_register(
 #define SI5351C_CLK_SRC_MULTISYNTH_0_4  2
 #define SI5351C_CLK_SRC_MULTISYNTH_SELF 3
 
-void print_clk_control(uint8_t clk_ctrl) {
+void print_clk_control(uint16_t clk_ctrl) {
 	uint8_t clk_src, clk_pwr;
 	printf("\tclock control = \n");
 	if(clk_ctrl & SI5351C_CLK_POWERDOWN)
diff --git a/host/hackrf-tools/src/hackrf_operacake.c b/host/hackrf-tools/src/hackrf_operacake.c
index ad06d39c..01bd12a6 100644
--- a/host/hackrf-tools/src/hackrf_operacake.c
+++ b/host/hackrf-tools/src/hackrf_operacake.c
@@ -74,7 +74,7 @@ int parse_uint16(char* const s, uint16_t* const value) {
 
 int parse_u16_range(char* s, hackrf_oc_range* range) {
 	int result = 0;
-	uint16_t port = 0;
+	uint16_t tmp_port, port = 0;
 
 	char *sep = strchr(s, ':');
 	if (!sep)
@@ -97,7 +97,7 @@ int parse_u16_range(char* s, hackrf_oc_range* range) {
 	if(sep2[0] == 'A' || sep2[0] == 'B') {
 		// The port was specified as a side and number eg. A1 or B3
 		if(sep2[1] > 0x30 && sep2[1] < 0x35) {
-			uint16_t tmp_port = sep2[1] - 0x30;
+			tmp_port = sep2[1] - 0x30;
 			if(tmp_port >= 5 || tmp_port <= 0)
 				return HACKRF_ERROR_INVALID_PARAM;
 
@@ -108,7 +108,7 @@ int parse_u16_range(char* s, hackrf_oc_range* range) {
 			} else {
 				// If B was specfied just add 4-1 ports
 				// B1=4, B2=5, B3=6, B4=7
-				port =  (uint16_t) tmp_port+3;
+				port = (uint16_t) tmp_port+3;
 			}
 			//printf("Setting port %c%c to port %d\n", sep2[0], sep2[1], (uint16_t)port);
 		}
@@ -117,7 +117,7 @@ int parse_u16_range(char* s, hackrf_oc_range* range) {
 		if (result != HACKRF_SUCCESS)
 			return result;
 	}
-	range->port = port;
+	range->port = port & 0xFF;
 
 	return HACKRF_SUCCESS;
 }
@@ -248,9 +248,9 @@ int main(int argc, char** argv) {
 		for(i=0; i<range_idx; i++) {
 			ptr = 5*i;
 			range_bytes[ptr] = ranges[i].freq_min >> 8;
-			range_bytes[ptr+1] = ranges[i].freq_min;
+			range_bytes[ptr+1] = ranges[i].freq_min & 0xFF;
 			range_bytes[ptr+2] = ranges[i].freq_max >> 8;
-			range_bytes[ptr+3] = ranges[i].freq_max;
+			range_bytes[ptr+3] = ranges[i].freq_max & 0xFF;
 			range_bytes[ptr+4] = ranges[i].port;
 		}
 
diff --git a/host/hackrf-tools/src/hackrf_sweep.c b/host/hackrf-tools/src/hackrf_sweep.c
index f5519999..8b038841 100644
--- a/host/hackrf-tools/src/hackrf_sweep.c
+++ b/host/hackrf-tools/src/hackrf_sweep.c
@@ -198,7 +198,7 @@ float logPower(fftwf_complex in, float scale)
 	float re = in[0] * scale;
 	float im = in[1] * scale;
 	float magsq = re * re + im * im;
-	return log2f(magsq) * 10.0f / log2(10.0f);
+	return (float) (log2(magsq) * 10.0f / log2(10.0f));
 }
 
 int rx_callback(hackrf_transfer* transfer) {
@@ -296,7 +296,7 @@ int rx_callback(hackrf_transfer* transfer) {
 			fwrite(&band_edge, sizeof(band_edge), 1, fd);
 			fwrite(&pwr[1+fftSize/8], sizeof(float), fftSize/4, fd);
 		} else if(ifft_output) {
-			ifft_idx = round((frequency - (uint64_t)(FREQ_ONE_MHZ*frequencies[0]))
+			ifft_idx = (uint32_t) round((frequency - (uint64_t)(FREQ_ONE_MHZ*frequencies[0]))
 					/ fft_bin_width);
 			ifft_idx = (ifft_idx + ifft_bins/2) % ifft_bins;
 			for(i = 0; (fftSize / 4) > i; i++) {
@@ -564,7 +564,7 @@ int main(int argc, char** argv) {
 	pwr = (float*)fftwf_malloc(sizeof(float) * fftSize);
 	window = (float*)fftwf_malloc(sizeof(float) * fftSize);
 	for (i = 0; i < fftSize; i++) {
-		window[i] = 0.5f * (1.0f - cos(2 * M_PI * i / (fftSize - 1)));
+		window[i] = (float) (0.5f * (1.0f - cos(2 * M_PI * i / (fftSize - 1))));
 	}
 
 	result = hackrf_init();
@@ -640,7 +640,7 @@ int main(int argc, char** argv) {
 	for(i = 0; i < num_ranges; i++) {
 		step_count = 1 + (frequencies[2*i+1] - frequencies[2*i] - 1)
 				/ TUNE_STEP;
-		frequencies[2*i+1] = frequencies[2*i] + step_count * TUNE_STEP;
+		frequencies[2*i+1] = (uint16_t) (frequencies[2*i] + step_count * TUNE_STEP);
 		fprintf(stderr, "Sweeping from %u MHz to %u MHz\n",
 				frequencies[2*i], frequencies[2*i+1]);
 	}
diff --git a/host/hackrf-tools/src/hackrf_transfer.c b/host/hackrf-tools/src/hackrf_transfer.c
index 28eb5de9..f24b545d 100644
--- a/host/hackrf-tools/src/hackrf_transfer.c
+++ b/host/hackrf-tools/src/hackrf_transfer.c
@@ -254,6 +254,22 @@ int parse_u32(char* s, uint32_t* const value) {
 	}
 }
 
+/* Parse frequencies as doubles to take advantage of notation parsing */
+int parse_frequency_i64(char* optarg, char* endptr, int64_t* value) {
+	*value = (int64_t) strtod(optarg, &endptr);
+	if (optarg == endptr) {
+		return HACKRF_ERROR_INVALID_PARAM;
+	}
+	return HACKRF_SUCCESS;
+}
+
+int parse_frequency_u32(char* optarg, char* endptr, uint32_t* value) {
+	*value = (uint32_t) strtod(optarg, &endptr);
+	if (optarg == endptr) {
+		return HACKRF_ERROR_INVALID_PARAM;
+	}
+	return HACKRF_SUCCESS;
+}
 
 static char *stringrev(char *str)
 {
@@ -537,8 +553,7 @@ int main(int argc, char** argv) {
 	char date_time[DATE_TIME_MAX_LEN];
 	const char* path = NULL;
 	const char* serial_number = NULL;
-	char* endptr;
-	double f_hz;
+	char* endptr = NULL;
 	int result;
 	time_t rawtime;
 	struct tm * timeinfo;
@@ -584,32 +599,17 @@ int main(int argc, char** argv) {
 			break;
 
 		case 'f':
-			f_hz = strtod(optarg, &endptr);
-			if (optarg == endptr) {
-				result = HACKRF_ERROR_INVALID_PARAM;
-				break;
-			}
-			freq_hz = f_hz;
+			result = parse_frequency_i64(optarg, endptr, &freq_hz);
 			automatic_tuning = true;
 			break;
 
 		case 'i':
-			f_hz = strtod(optarg, &endptr);
-			if (optarg == endptr) {
-				result = HACKRF_ERROR_INVALID_PARAM;
-				break;
-			}
-			if_freq_hz = f_hz;
+			result = parse_frequency_i64(optarg, endptr, &if_freq_hz);
 			if_freq = true;
 			break;
 
 		case 'o':
-			f_hz = strtod(optarg, &endptr);
-			if (optarg == endptr) {
-				result = HACKRF_ERROR_INVALID_PARAM;
-				break;
-			}
-			lo_freq_hz = f_hz;
+			result = parse_frequency_i64(optarg, endptr, &lo_freq_hz);
 			lo_freq = true;
 			break;
 
@@ -641,12 +641,7 @@ int main(int argc, char** argv) {
 			break;
 
 		case 's':
-			f_hz = strtod(optarg, &endptr);
-			if (optarg == endptr) {
-				result = HACKRF_ERROR_INVALID_PARAM;
-				break;
-			}
-			sample_rate_hz = f_hz;
+			result = parse_frequency_u32(optarg, endptr, &sample_rate_hz);
 			sample_rate = true;
 			break;
 
@@ -657,12 +652,7 @@ int main(int argc, char** argv) {
 			break;
 
 		case 'b':
-			f_hz = strtod(optarg, &endptr);
-			if (optarg == endptr) {
-				result = HACKRF_ERROR_INVALID_PARAM;
-				break;
-			}
-			baseband_filter_bw_hz = f_hz;
+			result = parse_frequency_u32(optarg, endptr, &baseband_filter_bw_hz);
 			baseband_filter_bw = true;
 			break;
 
@@ -758,7 +748,7 @@ int main(int argc, char** argv) {
 			freq_hz = if_freq_hz;
 			break;
 		case RF_PATH_FILTER_LOW_PASS:
-			freq_hz = labs(if_freq_hz - lo_freq_hz);
+			freq_hz = (int64_t) labs((long int) (if_freq_hz - lo_freq_hz));
 			break;
 		case RF_PATH_FILTER_HIGH_PASS:
 			freq_hz = if_freq_hz + lo_freq_hz;
diff --git a/host/libhackrf/src/hackrf.c b/host/libhackrf/src/hackrf.c
index 1bf45749..0ad05691 100644
--- a/host/libhackrf/src/hackrf.c
+++ b/host/libhackrf/src/hackrf.c
@@ -30,6 +30,7 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 #ifdef _WIN32
 /* Avoid redefinition of timespec from time.h (included by libusb.h) */
 #define HAVE_STRUCT_TIMESPEC 1
+#define strdup _strdup
 #endif
 #include <pthread.h>
 
@@ -397,7 +398,7 @@ const char* ADDCALL hackrf_library_release()
 
 hackrf_device_list_t* ADDCALL hackrf_device_list()
 {
-	ssize_t i;
+	int i;
 	libusb_device_handle* usb_device = NULL;
 	uint8_t serial_descriptor_index;
 	char serial_number[64];
@@ -407,7 +408,7 @@ hackrf_device_list_t* ADDCALL hackrf_device_list()
 	if ( list == NULL )
 		return NULL;
 		
-	list->usb_devicecount = libusb_get_device_list(g_libusb_context, (libusb_device ***)&list->usb_devices);
+	list->usb_devicecount = (int) libusb_get_device_list(g_libusb_context, (libusb_device ***)&list->usb_devices);
 	
 	list->serial_numbers = calloc(list->usb_devicecount, sizeof(void *));
 	list->usb_board_ids = calloc(list->usb_devicecount, sizeof(enum hackrf_usb_board_id));
@@ -474,7 +475,7 @@ libusb_device_handle* hackrf_open_usb(const char* const desired_serial_number)
 	libusb_device_handle* usb_device = NULL;
 	libusb_device** devices = NULL;
 	const ssize_t list_length = libusb_get_device_list(g_libusb_context, &devices);
-	int match_len = 0;
+	ssize_t match_len = 0;
 	ssize_t i;
 	char serial_number[64];
 	int serial_number_length;
@@ -1225,7 +1226,8 @@ typedef struct {
  * described below.
  */
 int ADDCALL hackrf_set_sample_rate_manual(hackrf_device* device,
-                                       const uint32_t freq_hz, uint32_t divider)
+                                          const uint32_t freq_hz,
+                                          const uint32_t divider)
 {
 	set_fracrate_params_t set_fracrate_params;
 	uint8_t length;