diff --git a/src/drivers/adis16448/adis16448.cpp b/src/drivers/adis16448/adis16448.cpp
index 3454d73da3..41a57ecd28 100644
--- a/src/drivers/adis16448/adis16448.cpp
+++ b/src/drivers/adis16448/adis16448.cpp
@@ -1111,9 +1111,6 @@ ADIS16448::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return _sample_rate;
 
@@ -1187,9 +1184,6 @@ ADIS16448::gyro_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return _sample_rate;
 
@@ -1255,9 +1249,6 @@ ADIS16448::mag_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _mag_reports->size();
-
 	case MAGIOCGSAMPLERATE:
 		return _sample_rate;
 
diff --git a/src/drivers/bma180/bma180.cpp b/src/drivers/bma180/bma180.cpp
index 66d504a556..5376666532 100644
--- a/src/drivers/bma180/bma180.cpp
+++ b/src/drivers/bma180/bma180.cpp
@@ -471,9 +471,6 @@ BMA180::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement */
 		return -EINVAL;
diff --git a/src/drivers/bmi055/bmi055_accel.cpp b/src/drivers/bmi055/bmi055_accel.cpp
index 962f89b4de..66d05f09ff 100644
--- a/src/drivers/bmi055/bmi055_accel.cpp
+++ b/src/drivers/bmi055/bmi055_accel.cpp
@@ -434,9 +434,6 @@ BMI055_accel::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return _accel_sample_rate;
 
diff --git a/src/drivers/bmi055/bmi055_gyro.cpp b/src/drivers/bmi055/bmi055_gyro.cpp
index f1da1a8021..2829c17f53 100644
--- a/src/drivers/bmi055/bmi055_gyro.cpp
+++ b/src/drivers/bmi055/bmi055_gyro.cpp
@@ -435,9 +435,6 @@ BMI055_gyro::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return _gyro_sample_rate;
 
diff --git a/src/drivers/bmi160/bmi160.cpp b/src/drivers/bmi160/bmi160.cpp
index 376dd6dda5..fd51c6aeee 100644
--- a/src/drivers/bmi160/bmi160.cpp
+++ b/src/drivers/bmi160/bmi160.cpp
@@ -714,9 +714,6 @@ BMI160::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return _accel_sample_rate;
 
@@ -786,9 +783,6 @@ BMI160::gyro_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return _gyro_sample_rate;
 
diff --git a/src/drivers/bmm150/bmm150.cpp b/src/drivers/bmm150/bmm150.cpp
index 0ae4b5d8c3..590b64e538 100644
--- a/src/drivers/bmm150/bmm150.cpp
+++ b/src/drivers/bmm150/bmm150.cpp
@@ -794,9 +794,6 @@ BMM150::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		return reset();
 
diff --git a/src/drivers/bmp280/bmp280.cpp b/src/drivers/bmp280/bmp280.cpp
index c586608ba7..3408e95469 100644
--- a/src/drivers/bmp280/bmp280.cpp
+++ b/src/drivers/bmp280/bmp280.cpp
@@ -411,9 +411,6 @@ BMP280::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/*
 		 * Since we are initialized, we do not need to do anything, since the
diff --git a/src/drivers/drv_sensor.h b/src/drivers/drv_sensor.h
index a1d2a5ad1a..64e265ed5b 100644
--- a/src/drivers/drv_sensor.h
+++ b/src/drivers/drv_sensor.h
@@ -139,9 +139,6 @@
  */
 #define SENSORIOCSQUEUEDEPTH	_SENSORIOC(2)
 
-/** return the internal queue depth */
-#define SENSORIOCGQUEUEDEPTH	_SENSORIOC(3)
-
 /**
  * Reset the sensor to its default configuration
  */
diff --git a/src/drivers/fxas21002c/fxas21002c.cpp b/src/drivers/fxas21002c/fxas21002c.cpp
index 73cc491c76..546f142a5f 100644
--- a/src/drivers/fxas21002c/fxas21002c.cpp
+++ b/src/drivers/fxas21002c/fxas21002c.cpp
@@ -710,9 +710,6 @@ FXAS21002C::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		reset();
 		return OK;
diff --git a/src/drivers/fxos8701cq/fxos8701cq.cpp b/src/drivers/fxos8701cq/fxos8701cq.cpp
index 4e5fe6a719..fae4ab7ddb 100644
--- a/src/drivers/fxos8701cq/fxos8701cq.cpp
+++ b/src/drivers/fxos8701cq/fxos8701cq.cpp
@@ -847,9 +847,6 @@ FXOS8701CQ::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case SENSORIOCRESET:
 		reset();
 		return OK;
@@ -975,9 +972,6 @@ FXOS8701CQ::mag_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _mag_reports->size();
-
 	case SENSORIOCRESET:
 		reset();
 		return OK;
diff --git a/src/drivers/hc_sr04/hc_sr04.cpp b/src/drivers/hc_sr04/hc_sr04.cpp
index fef934673c..c351518004 100644
--- a/src/drivers/hc_sr04/hc_sr04.cpp
+++ b/src/drivers/hc_sr04/hc_sr04.cpp
@@ -445,9 +445,6 @@ HC_SR04::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/hmc5883/hmc5883.cpp b/src/drivers/hmc5883/hmc5883.cpp
index 8834fb69f5..031cbb7129 100644
--- a/src/drivers/hmc5883/hmc5883.cpp
+++ b/src/drivers/hmc5883/hmc5883.cpp
@@ -704,9 +704,6 @@ HMC5883::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		return reset();
 
diff --git a/src/drivers/ist8310/ist8310.cpp b/src/drivers/ist8310/ist8310.cpp
index 891e1629c4..689db00532 100644
--- a/src/drivers/ist8310/ist8310.cpp
+++ b/src/drivers/ist8310/ist8310.cpp
@@ -703,9 +703,6 @@ IST8310::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		return reset();
 
diff --git a/src/drivers/l3gd20/l3gd20.cpp b/src/drivers/l3gd20/l3gd20.cpp
index 22171c8be6..356c93bdfd 100644
--- a/src/drivers/l3gd20/l3gd20.cpp
+++ b/src/drivers/l3gd20/l3gd20.cpp
@@ -657,9 +657,6 @@ L3GD20::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		reset();
 		return OK;
diff --git a/src/drivers/lis3mdl/lis3mdl.cpp b/src/drivers/lis3mdl/lis3mdl.cpp
index 91fe013ab6..64bd8f7a71 100644
--- a/src/drivers/lis3mdl/lis3mdl.cpp
+++ b/src/drivers/lis3mdl/lis3mdl.cpp
@@ -710,9 +710,6 @@ LIS3MDL::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		return reset();
 
diff --git a/src/drivers/ll40ls/LidarLiteI2C.cpp b/src/drivers/ll40ls/LidarLiteI2C.cpp
index 9760809342..b7f5db53aa 100644
--- a/src/drivers/ll40ls/LidarLiteI2C.cpp
+++ b/src/drivers/ll40ls/LidarLiteI2C.cpp
@@ -221,9 +221,6 @@ int LidarLiteI2C::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	default: {
 			int result = LidarLite::ioctl(filp, cmd, arg);
 
diff --git a/src/drivers/lps25h/lps25h.cpp b/src/drivers/lps25h/lps25h.cpp
index b8551161a3..d32535b889 100644
--- a/src/drivers/lps25h/lps25h.cpp
+++ b/src/drivers/lps25h/lps25h.cpp
@@ -552,9 +552,6 @@ LPS25H::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		return reset();
 
diff --git a/src/drivers/lsm303d/lsm303d.cpp b/src/drivers/lsm303d/lsm303d.cpp
index 012a5ef7b2..9268090e5e 100644
--- a/src/drivers/lsm303d/lsm303d.cpp
+++ b/src/drivers/lsm303d/lsm303d.cpp
@@ -916,9 +916,6 @@ LSM303D::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case SENSORIOCRESET:
 		reset();
 		return OK;
@@ -1044,9 +1041,6 @@ LSM303D::mag_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _mag_reports->size();
-
 	case SENSORIOCRESET:
 		reset();
 		return OK;
diff --git a/src/drivers/mb12xx/mb12xx.cpp b/src/drivers/mb12xx/mb12xx.cpp
index b8c0490882..3e4a295a84 100644
--- a/src/drivers/mb12xx/mb12xx.cpp
+++ b/src/drivers/mb12xx/mb12xx.cpp
@@ -437,9 +437,6 @@ MB12XX::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/mpl3115a2/mpl3115a2.cpp b/src/drivers/mpl3115a2/mpl3115a2.cpp
index ed64cae7fe..7b40d00a03 100644
--- a/src/drivers/mpl3115a2/mpl3115a2.cpp
+++ b/src/drivers/mpl3115a2/mpl3115a2.cpp
@@ -482,9 +482,6 @@ MPL3115A2::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET: {
 			/*
 			 * Since we are initialized, we do not need to do anything, since the
diff --git a/src/drivers/mpu6000/mpu6000.cpp b/src/drivers/mpu6000/mpu6000.cpp
index 00f1a3d24e..da29dcf54c 100644
--- a/src/drivers/mpu6000/mpu6000.cpp
+++ b/src/drivers/mpu6000/mpu6000.cpp
@@ -1472,9 +1472,6 @@ MPU6000::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return _sample_rate;
 
@@ -1548,9 +1545,6 @@ MPU6000::gyro_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return _sample_rate;
 
diff --git a/src/drivers/mpu9250/mag.cpp b/src/drivers/mpu9250/mag.cpp
index 3f56a74def..9e8289535a 100644
--- a/src/drivers/mpu9250/mag.cpp
+++ b/src/drivers/mpu9250/mag.cpp
@@ -354,9 +354,6 @@ MPU9250_mag::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _mag_reports->size();
-
 	case MAGIOCGSAMPLERATE:
 		return MPU9250_AK8963_SAMPLE_RATE;
 
diff --git a/src/drivers/mpu9250/mpu9250.cpp b/src/drivers/mpu9250/mpu9250.cpp
index 004de1f43b..03fcff7e6f 100644
--- a/src/drivers/mpu9250/mpu9250.cpp
+++ b/src/drivers/mpu9250/mpu9250.cpp
@@ -888,9 +888,6 @@ MPU9250::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return _sample_rate;
 
@@ -961,9 +958,6 @@ MPU9250::gyro_ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return _sample_rate;
 
diff --git a/src/drivers/ms5611/ms5611.cpp b/src/drivers/ms5611/ms5611.cpp
index a7543b96e8..83bb1aa371 100644
--- a/src/drivers/ms5611/ms5611.cpp
+++ b/src/drivers/ms5611/ms5611.cpp
@@ -564,9 +564,6 @@ MS5611::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/*
 		 * Since we are initialized, we do not need to do anything, since the
diff --git a/src/drivers/pwm_input/pwm_input.cpp b/src/drivers/pwm_input/pwm_input.cpp
index b148675668..025aa1f468 100644
--- a/src/drivers/pwm_input/pwm_input.cpp
+++ b/src/drivers/pwm_input/pwm_input.cpp
@@ -455,9 +455,6 @@ PWMIN::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* user has asked for the timer to be reset. This may
 		 * be needed if the pin was used for a different
diff --git a/src/drivers/px4flow/px4flow.cpp b/src/drivers/px4flow/px4flow.cpp
index 6d6f648763..90355af6e5 100644
--- a/src/drivers/px4flow/px4flow.cpp
+++ b/src/drivers/px4flow/px4flow.cpp
@@ -385,9 +385,6 @@ PX4FLOW::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/sf0x/sf0x.cpp b/src/drivers/sf0x/sf0x.cpp
index 8369f57d24..88d0d2ccd1 100644
--- a/src/drivers/sf0x/sf0x.cpp
+++ b/src/drivers/sf0x/sf0x.cpp
@@ -472,9 +472,6 @@ SF0X::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/sf1xx/sf1xx.cpp b/src/drivers/sf1xx/sf1xx.cpp
index 6f470c41ab..f080cc1796 100644
--- a/src/drivers/sf1xx/sf1xx.cpp
+++ b/src/drivers/sf1xx/sf1xx.cpp
@@ -435,9 +435,6 @@ SF1XX::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/srf02/srf02.cpp b/src/drivers/srf02/srf02.cpp
index 1d26b1c4b9..e5f229990e 100644
--- a/src/drivers/srf02/srf02.cpp
+++ b/src/drivers/srf02/srf02.cpp
@@ -438,9 +438,6 @@ SRF02::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/srf02_i2c/srf02_i2c.cpp b/src/drivers/srf02_i2c/srf02_i2c.cpp
index 5eeb0473c9..0f09f12f0f 100644
--- a/src/drivers/srf02_i2c/srf02_i2c.cpp
+++ b/src/drivers/srf02_i2c/srf02_i2c.cpp
@@ -439,9 +439,6 @@ SRF02_I2C::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/drivers/teraranger/teraranger.cpp b/src/drivers/teraranger/teraranger.cpp
index 38b46dc64b..7fb0836dc7 100644
--- a/src/drivers/teraranger/teraranger.cpp
+++ b/src/drivers/teraranger/teraranger.cpp
@@ -502,9 +502,6 @@ TERARANGER::ioctl(struct file *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/platforms/posix/drivers/accelsim/accelsim.cpp b/src/platforms/posix/drivers/accelsim/accelsim.cpp
index 8cccf8fddc..ca8deaa85f 100644
--- a/src/platforms/posix/drivers/accelsim/accelsim.cpp
+++ b/src/platforms/posix/drivers/accelsim/accelsim.cpp
@@ -564,9 +564,6 @@ ACCELSIM::devIOCTL(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case SENSORIOCRESET:
 		// Nothing to do for simulator
 		return OK;
@@ -687,9 +684,6 @@ ACCELSIM::mag_ioctl(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _mag_reports->size();
-
 	case SENSORIOCRESET:
 		// Nothing to do for simulator
 		return OK;
diff --git a/src/platforms/posix/drivers/airspeedsim/airspeedsim.cpp b/src/platforms/posix/drivers/airspeedsim/airspeedsim.cpp
index a6efb4d2b6..723170da10 100644
--- a/src/platforms/posix/drivers/airspeedsim/airspeedsim.cpp
+++ b/src/platforms/posix/drivers/airspeedsim/airspeedsim.cpp
@@ -259,9 +259,6 @@ AirspeedSim::ioctl(device::file_t *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;
diff --git a/src/platforms/posix/drivers/gyrosim/gyrosim.cpp b/src/platforms/posix/drivers/gyrosim/gyrosim.cpp
index 099346f8f7..9781f539f9 100644
--- a/src/platforms/posix/drivers/gyrosim/gyrosim.cpp
+++ b/src/platforms/posix/drivers/gyrosim/gyrosim.cpp
@@ -786,9 +786,6 @@ GYROSIM::devIOCTL(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return 1e6 / m_sample_interval_usecs;
 
@@ -854,9 +851,6 @@ GYROSIM::gyro_ioctl(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return 1e6 / m_sample_interval_usecs;