diff --git a/src/drivers/hmc5883/hmc5883.cpp b/src/drivers/hmc5883/hmc5883.cpp
index 4861d55501..2d3be15833 100644
--- a/src/drivers/hmc5883/hmc5883.cpp
+++ b/src/drivers/hmc5883/hmc5883.cpp
@@ -921,10 +921,10 @@ HMC5883::collect()
 
 			_temperature_counter = 0;
 
-			ret = _interface->read(ADDR_TEMP_OUT_MSB, 
+			ret = _interface->read(ADDR_TEMP_OUT_MSB,
 					       raw_temperature, sizeof(raw_temperature));
 			if (ret == OK) {
-				int16_t temp16 = (((int16_t)raw_temperature[0]) << 8) + 
+				int16_t temp16 = (((int16_t)raw_temperature[0]) << 8) +
 					raw_temperature[1];
 				new_report.temperature = 25 + (temp16 / (16*8.0f));
 				_temperature_error_count = 0;
@@ -1146,8 +1146,8 @@ int HMC5883::calibrate(struct file *filp, unsigned enable)
 			ret = -EIO;
 			goto out;
 		}
-		float cal[3] = {fabsf(expected_cal[0] / report.x), 
-				fabsf(expected_cal[1] / report.y), 
+		float cal[3] = {fabsf(expected_cal[0] / report.x),
+				fabsf(expected_cal[1] / report.y),
 				fabsf(expected_cal[2] / report.z)};
 
 		if (cal[0] > 0.7f && cal[0] < 1.35f &&
@@ -1381,7 +1381,7 @@ HMC5883::print_info()
 	printf("poll interval:  %u ticks\n", _measure_ticks);
 	printf("output  (%.2f %.2f %.2f)\n", (double)_last_report.x, (double)_last_report.y, (double)_last_report.z);
 	printf("offsets (%.2f %.2f %.2f)\n", (double)_scale.x_offset, (double)_scale.y_offset, (double)_scale.z_offset);
-	printf("scaling (%.2f %.2f %.2f) 1/range_scale %.2f range_ga %.2f\n", 
+	printf("scaling (%.2f %.2f %.2f) 1/range_scale %.2f range_ga %.2f\n",
 	       (double)_scale.x_scale, (double)_scale.y_scale, (double)_scale.z_scale,
 	       (double)(1.0f/_range_scale), (double)_range_ga);
 	printf("temperature %.2f\n", (double)_last_report.temperature);
@@ -1451,7 +1451,7 @@ start_bus(struct hmc5883_bus_option &bus, enum Rotation rotation)
 		bus.dev = NULL;
 		return false;
 	}
-			
+
 	int fd = open(bus.devpath, O_RDONLY);
 	if (fd < 0) {
 		return false;
@@ -1505,7 +1505,7 @@ struct hmc5883_bus_option &find_bus(enum HMC5883_BUS busid)
 		     busid == bus_options[i].busid) && bus_options[i].dev != NULL) {
 			return bus_options[i];
 		}
-	}	
+	}
 	errx(1, "bus %u not started", (unsigned)busid);
 }
 
@@ -1750,7 +1750,7 @@ hmc5883_main(int argc, char *argv[])
 		}
 	}
 
-	const char *verb = argv[optind];	
+	const char *verb = argv[optind];
 
 	/*
 	 * Start/load the driver.
diff --git a/src/drivers/lsm303d/lsm303d.cpp b/src/drivers/lsm303d/lsm303d.cpp
index 87fe05d8f9..8a77eeb917 100644
--- a/src/drivers/lsm303d/lsm303d.cpp
+++ b/src/drivers/lsm303d/lsm303d.cpp
@@ -588,7 +588,7 @@ LSM303D::LSM303D(int bus, const char* path, spi_dev_e device, enum Rotation rota
 	_debug_enabled = true;
 
 	_device_id.devid_s.devtype = DRV_ACC_DEVTYPE_LSM303D;
-	
+
 	/* Prime _mag with parents devid. */
 	_mag->_device_id.devid = _device_id.devid;
 	_mag->_device_id.devid_s.devtype = DRV_MAG_DEVTYPE_LSM303D;
@@ -1399,9 +1399,9 @@ LSM303D::start()
 	_mag_reports->flush();
 
 	/* start polling at the specified rate */
-	hrt_call_every(&_accel_call, 
+	hrt_call_every(&_accel_call,
                        1000,
-                       _call_accel_interval - LSM303D_TIMER_REDUCTION, 
+                       _call_accel_interval - LSM303D_TIMER_REDUCTION,
                        (hrt_callout)&LSM303D::measure_trampoline, this);
 	hrt_call_every(&_mag_call, 1000, _call_mag_interval, (hrt_callout)&LSM303D::mag_measure_trampoline, this);
 }
diff --git a/src/drivers/ms5611/ms5611_nuttx.cpp b/src/drivers/ms5611/ms5611_nuttx.cpp
index 95f532fbd9..cf96a7a95b 100644
--- a/src/drivers/ms5611/ms5611_nuttx.cpp
+++ b/src/drivers/ms5611/ms5611_nuttx.cpp
@@ -896,7 +896,7 @@ start_bus(struct ms5611_bus_option &bus)
 		bus.dev = NULL;
 		return false;
 	}
-			
+
 	int fd = open(bus.devpath, O_RDONLY);
 
 	/* set the poll rate to default, starts automatic data collection */
@@ -955,7 +955,7 @@ struct ms5611_bus_option &find_bus(enum MS5611_BUS busid)
 		     busid == bus_options[i].busid) && bus_options[i].dev != NULL) {
 			return bus_options[i];
 		}
-	}	
+	}
 	errx(1,"bus %u not started", (unsigned)busid);
 }
 
diff --git a/src/drivers/px4flow/px4flow.cpp b/src/drivers/px4flow/px4flow.cpp
index 420805c73f..319c902f12 100644
--- a/src/drivers/px4flow/px4flow.cpp
+++ b/src/drivers/px4flow/px4flow.cpp
@@ -123,13 +123,13 @@ private:
 	ringbuffer::RingBuffer			*_reports;
 	bool				_sensor_ok;
 	int					_measure_ticks;
-	bool				_collect_phase; 
+	bool				_collect_phase;
 	orb_advert_t		_px4flow_topic;
 
 	perf_counter_t		_sample_perf;
 	perf_counter_t		_comms_errors;
 	perf_counter_t		_buffer_overflows;
-	
+
 	enum Rotation				_sensor_rotation;
 
 	/**
@@ -486,10 +486,10 @@ PX4FLOW::collect()
 	report.gyro_temperature = f_integral.gyro_temperature;//Temperature * 100 in centi-degrees Celsius
 
 	report.sensor_id = 0;
-	
+
 	/* rotate measurements according to parameter */
 	float zeroval = 0.0f;
-	rotate_3f(_sensor_rotation, report.pixel_flow_x_integral, report.pixel_flow_y_integral, zeroval); 
+	rotate_3f(_sensor_rotation, report.pixel_flow_x_integral, report.pixel_flow_y_integral, zeroval);
 
 	if (_px4flow_topic < 0) {
 		_px4flow_topic = orb_advertise(ORB_ID(optical_flow), &report);
diff --git a/src/drivers/trone/trone.cpp b/src/drivers/trone/trone.cpp
index d072b1b251..58799b46ac 100644
--- a/src/drivers/trone/trone.cpp
+++ b/src/drivers/trone/trone.cpp
@@ -82,7 +82,7 @@
 #define TRONE_WHO_AM_I_REG  0x01        /* Who am I test register */
 #define TRONE_WHO_AM_I_REG_VAL 0xA1
 
- 
+
 /* Device limits */
 #define TRONE_MIN_DISTANCE (0.20f)
 #define TRONE_MAX_DISTANCE (14.00f)