diff --git a/host/hackrf-tools/src/hackrf_operacake.c b/host/hackrf-tools/src/hackrf_operacake.c
index da4df9fc..6c5775e4 100644
--- a/host/hackrf-tools/src/hackrf_operacake.c
+++ b/host/hackrf-tools/src/hackrf_operacake.c
@@ -34,7 +34,6 @@ typedef int bool;
 
 #define FREQ_MIN_MHZ (0)    /*    0 MHz */
 #define FREQ_MAX_MHZ (7250) /* 7250 MHz */
-#define MAX_FREQ_RANGES 8
 
 #define INVALID_ADDRESS 0xFF
 #define INVALID_MODE 0xFF
@@ -66,12 +65,6 @@ static struct option long_options[] = {
 	{ 0, 0, 0, 0 },
 };
 
-typedef struct {
-	uint16_t freq_min;
-	uint16_t freq_max;
-	uint8_t port;
-} hackrf_oc_range;
-
 int parse_uint16(char* const s, uint16_t* const value) {
 	char* s_end = s;
 	const long long_value = strtol(s, &s_end, 10);
@@ -128,7 +121,7 @@ int parse_port(char* str, uint8_t* port) {
 	return HACKRF_SUCCESS;
 }
 
-int parse_range(char* s, hackrf_oc_range* range) {
+int parse_range(char* s, hackrf_operacake_freq_range* range) {
 	char port[16];
 	float min;
 	float max;
@@ -180,7 +173,7 @@ int main(int argc, char** argv) {
 	int i = 0;
 	hackrf_device* device = NULL;
 	int option_index = 0;
-	hackrf_oc_range ranges[MAX_FREQ_RANGES];
+	hackrf_operacake_freq_range ranges[HACKRF_OPERACAKE_MAX_FREQ_RANGES];
 	hackrf_operacake_dwell_time dwell_times[HACKRF_OPERACAKE_MAX_DWELL_TIMES];
 	uint8_t range_idx = 0;
 	uint8_t dwell_idx = 0;
@@ -220,10 +213,10 @@ int main(int argc, char** argv) {
 			break;
 
 		case 'f':
-			if(MAX_FREQ_RANGES == range_idx) {
+			if (HACKRF_OPERACAKE_MAX_FREQ_RANGES == range_idx) {
 				fprintf(stderr,
 						"argument error: specify a maximum of %u frequency ranges.\n",
-						MAX_FREQ_RANGES);
+						HACKRF_OPERACAKE_MAX_FREQ_RANGES);
 				usage();
 				return EXIT_FAILURE;
 			}
@@ -432,21 +425,10 @@ int main(int argc, char** argv) {
 		}
 	}
 
-	if(range_idx) {
-		uint8_t range_bytes[MAX_FREQ_RANGES * sizeof(hackrf_oc_range)];
-		uint8_t ptr;
-		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 & 0xFF;
-			range_bytes[ptr+2] = ranges[i].freq_max >> 8;
-			range_bytes[ptr+3] = ranges[i].freq_max & 0xFF;
-			range_bytes[ptr+4] = ranges[i].port;
-		}
-
-		result = hackrf_set_operacake_ranges(device, range_bytes, range_idx*5);
-		if( result ) {
-			printf("hackrf_set_operacake_ranges() failed: %s (%d)\n", hackrf_error_name(result), result);
+	if (range_idx) {
+		result = hackrf_set_operacake_freq_ranges(device, ranges, range_idx);
+		if (result) {
+			printf("hackrf_set_operacake_freq_ranges() failed: %s (%d)\n", hackrf_error_name(result), result);
 			return -1;
 		}
 	}
diff --git a/host/libhackrf/src/hackrf.c b/host/libhackrf/src/hackrf.c
index 489af183..5be23d6f 100644
--- a/host/libhackrf/src/hackrf.c
+++ b/host/libhackrf/src/hackrf.c
@@ -2266,6 +2266,9 @@ int ADDCALL hackrf_reset(hackrf_device* device) {
 	}
 }
 
+/**
+ * @deprecated This has been replaced by @ref hackrf_set_operacake_freq_ranges
+ */
 int ADDCALL hackrf_set_operacake_ranges(hackrf_device* device, uint8_t* ranges, uint8_t len_ranges)
 {
 	USB_API_REQUIRED(device, 0x0103)
@@ -2290,6 +2293,43 @@ int ADDCALL hackrf_set_operacake_ranges(hackrf_device* device, uint8_t* ranges,
 	}
 }
 
+int ADDCALL hackrf_set_operacake_freq_ranges(hackrf_device* device, hackrf_operacake_freq_range* freq_ranges, uint8_t count)
+{
+	USB_API_REQUIRED(device, 0x0103)
+
+	uint8_t range_bytes[HACKRF_OPERACAKE_MAX_FREQ_RANGES * sizeof(hackrf_operacake_freq_range)];
+	uint8_t ptr;
+	int i;
+	for (i = 0; i < count; i++) {
+		ptr = 5*i;
+		range_bytes[ptr]   = freq_ranges[i].freq_min >> 8;
+		range_bytes[ptr+1] = freq_ranges[i].freq_min & 0xFF;
+		range_bytes[ptr+2] = freq_ranges[i].freq_max >> 8;
+		range_bytes[ptr+3] = freq_ranges[i].freq_max & 0xFF;
+		range_bytes[ptr+4] = freq_ranges[i].port;
+	}
+
+	int result;
+	int len_ranges = count*5;
+	result = libusb_control_transfer(
+		device->usb_device,
+		LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE,
+		HACKRF_VENDOR_REQUEST_OPERACAKE_SET_RANGES,
+		0,
+		0,
+		range_bytes,
+		len_ranges,
+		0
+	);
+
+	if (result < len_ranges) {
+		last_libusb_error = result;
+		return HACKRF_ERROR_LIBUSB;
+	} else {
+		return HACKRF_SUCCESS;
+	}
+}
+
 #define DWELL_TIME_SIZE 5
 static uint8_t dwell_data[DWELL_TIME_SIZE*HACKRF_OPERACAKE_MAX_DWELL_TIMES];
 int ADDCALL hackrf_set_operacake_dwell_times(hackrf_device* device, hackrf_operacake_dwell_time *dwell_times, uint8_t count)
diff --git a/host/libhackrf/src/hackrf.h b/host/libhackrf/src/hackrf.h
index ae5fe1b1..9e105c9c 100644
--- a/host/libhackrf/src/hackrf.h
+++ b/host/libhackrf/src/hackrf.h
@@ -53,6 +53,7 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 #define HACKRF_OPERACAKE_ADDRESS_INVALID 0xFF
 #define HACKRF_OPERACAKE_MAX_BOARDS 8
 #define HACKRF_OPERACAKE_MAX_DWELL_TIMES 16
+#define HACKRF_OPERACAKE_MAX_FREQ_RANGES 8
 
 enum hackrf_error {
 	HACKRF_SUCCESS = 0,
@@ -144,6 +145,11 @@ typedef struct {
 	uint8_t port;
 } hackrf_operacake_dwell_time;
 
+typedef struct {
+	uint16_t freq_min;
+	uint16_t freq_max;
+	uint8_t port;
+} hackrf_operacake_freq_range;
 
 struct hackrf_device_list {
 	char **serial_numbers;
@@ -267,6 +273,7 @@ extern ADDAPI int ADDCALL hackrf_set_operacake_ports(hackrf_device* device,
                                        uint8_t port_a,
                                        uint8_t port_b);
 extern ADDAPI int ADDCALL hackrf_set_operacake_dwell_times(hackrf_device* device, hackrf_operacake_dwell_time *dwell_times, uint8_t count);
+extern ADDAPI int ADDCALL hackrf_set_operacake_freq_ranges(hackrf_device* device, hackrf_operacake_freq_range *freq_ranges, uint8_t count);
 
 extern ADDAPI int ADDCALL hackrf_reset(hackrf_device* device);