* `ADXL345 <https://www.analog.com/ADXL345>`_
* `ADXL375 <https://www.analog.com/ADXL375>`_
-The ADXL345 is a generic purpose low power, 3-axis accelerometer with selectable
+The ADXL345 is a general-purpose, low-power, 3-axis accelerometer with selectable
measurement ranges. The ADXL345 supports the ±2 g, ±4 g, ±8 g, and ±16 g ranges.
2. Device Attributes
====================
-Each IIO device, has a device folder under ``/sys/bus/iio/devices/iio:deviceX``,
+Each IIO device has a device folder under ``/sys/bus/iio/devices/iio:deviceX``,
where X is the IIO index of the device. Under these folders reside a set of
device files, depending on the characteristics and features of the hardware
-device in questions. These files are consistently generalized and documented in
+device in question. These files are consistently generalized and documented in
the IIO ABI documentation.
The following table shows the ADXL345 related device files, found in the
+-------------------------------------------+----------------------------------------------------------+
| in_accel_x_raw | Raw X-axis accelerometer channel value. |
+-------------------------------------------+----------------------------------------------------------+
-| in_accel_y_calibbias | y-axis acceleration offset correction |
+| in_accel_y_calibbias | Y-axis acceleration offset correction |
+-------------------------------------------+----------------------------------------------------------+
| in_accel_y_raw | Raw Y-axis accelerometer channel value. |
+-------------------------------------------+----------------------------------------------------------+
+-------------------------------------+---------------------------+
| Channel type | Measurement unit |
+-------------------------------------+---------------------------+
-| Acceleration on X, Y, and Z axis | Meters per second squared |
+| Acceleration on X, Y, and Z axes | Meters per second squared |
+-------------------------------------+---------------------------+
Sensor Events
driver supports either none or a single active interrupt (INT) line, selectable
from the two available options: INT1 or INT2. The active INT line should be
specified in the device tree. If no INT line is configured, the sensor defaults
-to FIFO bypass mode, where event detection is disabled and only X, Y, and Z axis
-measurements are available.
+to FIFO bypass mode, where event detection is disabled and only individual
+X, Y, and Z axis measurements are available.
The table below lists the ADXL345-related device files located in the
device-specific path: ``/sys/bus/iio/devices/iio:deviceX/events``.
+---------------------------------------------+---------------------------------------------+
| Event handle | Description |
+---------------------------------------------+---------------------------------------------+
-| in_accel_gesture_doubletap_en | Enable double tap detection on all axis |
+| in_accel_gesture_doubletap_en | Enable double tap detection on all axes |
+---------------------------------------------+---------------------------------------------+
| in_accel_gesture_doubletap_reset_timeout | Double tap window in [us] |
+---------------------------------------------+---------------------------------------------+
-| in_accel_gesture_doubletap_tap2_min_delay | Double tap latent in [us] |
+| in_accel_gesture_doubletap_tap2_min_delay | Double tap latency in [us] |
+---------------------------------------------+---------------------------------------------+
| in_accel_gesture_singletap_timeout | Single tap duration in [us] |
+---------------------------------------------+---------------------------------------------+
| in_accel_gesture_singletap_value | Single tap threshold value in 62.5/LSB |
+---------------------------------------------+---------------------------------------------+
-| in_accel_mag_falling_period | Inactivity time in seconds |
+| in_accel_mag_adaptive_falling_period | AC coupled inactivity time in seconds |
+---------------------------------------------+---------------------------------------------+
-| in_accel_mag_falling_value | Inactivity threshold value in 62.5/LSB |
+| in_accel_mag_adaptive_falling_value | AC coupled inactivity threshold in 62.5/LSB |
+---------------------------------------------+---------------------------------------------+
| in_accel_mag_adaptive_rising_en | Enable AC coupled activity on X axis |
+---------------------------------------------+---------------------------------------------+
-| in_accel_mag_adaptive_falling_period | AC coupled inactivity time in seconds |
+| in_accel_mag_adaptive_rising_value | AC coupled activity threshold in 62.5/LSB |
+---------------------------------------------+---------------------------------------------+
-| in_accel_mag_adaptive_falling_value | AC coupled inactivity threshold in 62.5/LSB |
+| in_accel_mag_falling_period | Inactivity time in seconds |
+---------------------------------------------+---------------------------------------------+
-| in_accel_mag_adaptive_rising_value | AC coupled activity threshold in 62.5/LSB |
+| in_accel_mag_falling_value | Inactivity threshold value in 62.5/LSB |
+---------------------------------------------+---------------------------------------------+
| in_accel_mag_rising_en | Enable activity detection on X axis |
+---------------------------------------------+---------------------------------------------+
| in_accel_mag_rising_value | Activity threshold value in 62.5/LSB |
+---------------------------------------------+---------------------------------------------+
-| in_accel_x_gesture_singletap_en | Enable single tap detection on X axis |
+| in_accel_x&y&z_mag_adaptive_falling_en | Enable AC coupled inactivity on all axes |
+---------------------------------------------+---------------------------------------------+
-| in_accel_x&y&z_mag_falling_en | Enable inactivity detection on all axis |
+| in_accel_x&y&z_mag_falling_en | Enable inactivity detection on all axes |
+---------------------------------------------+---------------------------------------------+
-| in_accel_x&y&z_mag_adaptive_falling_en | Enable AC coupled inactivity on all axis |
+| in_accel_x_gesture_singletap_en | Enable single tap detection on X axis |
+---------------------------------------------+---------------------------------------------+
| in_accel_y_gesture_singletap_en | Enable single tap detection on Y axis |
+---------------------------------------------+---------------------------------------------+
## doubletap, window [us]
root:/sys/bus/iio/devices/iio:device0> echo 0.025 > ./events/in_accel_gesture_doubletap_reset_timeout
- ## doubletap, latent [us]
+ ## doubletap, latency [us]
root:/sys/bus/iio/devices/iio:device0> echo 0.025 > ./events/in_accel_gesture_doubletap_tap2_min_delay
## AC coupled activity, enable