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iio: hid-sensors: accelerometer: Add sensitivity

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A number of Properties that can be applied to Data Fields are per data
field basis or for all data fields. Adding sensitivity field for all
accelerometer fields, which is most commonly used in currently
available sensor hubs.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Srinivas Pandruvada 2013-10-30 22:48:00 +00:00 committed by Jonathan Cameron
parent ed5d6ca003
commit 64528d03d7
2 changed files with 17 additions and 0 deletions
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12
drivers/iio/accel/hid-sensor-accel-3d.c
View file

@ -262,6 +262,18 @@ static int accel_3d_parse_report(struct platform_device *pdev,
st->accel[1].index, st->accel[1].report_id,
st->accel[2].index, st->accel[2].report_id);
/* Set Sensitivity field ids, when there is no individual modifier */
if (st->common_attributes.sensitivity.index < 0) {
sensor_hub_input_get_attribute_info(hsdev,
HID_FEATURE_REPORT, usage_id,
HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
HID_USAGE_SENSOR_DATA_ACCELERATION,
&st->common_attributes.sensitivity);
dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
st->common_attributes.sensitivity.index,
st->common_attributes.sensitivity.report_id);
}
return ret;
}

5
include/linux/hid-sensor-ids.h
View file

@ -23,6 +23,7 @@
/* Accel 3D (200073) */
#define HID_USAGE_SENSOR_ACCEL_3D 0x200073
#define HID_USAGE_SENSOR_DATA_ACCELERATION 0x200452
#define HID_USAGE_SENSOR_ACCEL_X_AXIS 0x200453
#define HID_USAGE_SENSOR_ACCEL_Y_AXIS 0x200454
#define HID_USAGE_SENSOR_ACCEL_Z_AXIS 0x200455
@ -117,4 +118,8 @@
#define HID_USAGE_SENSOR_PROP_REPORT_STATE 0x200316
#define HID_USAGE_SENSOR_PROY_POWER_STATE 0x200319
/* Per data field properties */
#define HID_USAGE_SENSOR_DATA_MOD_NONE 0x00
#define HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS 0x1000
#endif