587 lines
16 KiB
C
587 lines
16 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* HID Sensors Driver
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* Copyright (c) 2012, Intel Corporation.
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*/
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/hid-sensor-hub.h>
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#include <linux/iio/iio.h>
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#include <linux/iio/buffer.h>
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#include "../common/hid-sensors/hid-sensor-trigger.h"
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enum magn_3d_channel {
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CHANNEL_SCAN_INDEX_X,
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CHANNEL_SCAN_INDEX_Y,
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CHANNEL_SCAN_INDEX_Z,
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CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP,
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CHANNEL_SCAN_INDEX_NORTH_TRUE_TILT_COMP,
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CHANNEL_SCAN_INDEX_NORTH_MAGN,
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CHANNEL_SCAN_INDEX_NORTH_TRUE,
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CHANNEL_SCAN_INDEX_TIMESTAMP,
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MAGN_3D_CHANNEL_MAX,
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};
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struct common_attributes {
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int scale_pre_decml;
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int scale_post_decml;
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int scale_precision;
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int value_offset;
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};
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struct magn_3d_state {
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struct hid_sensor_hub_callbacks callbacks;
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struct hid_sensor_common magn_flux_attributes;
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struct hid_sensor_common rot_attributes;
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struct hid_sensor_hub_attribute_info magn[MAGN_3D_CHANNEL_MAX];
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/* dynamically sized array to hold sensor values */
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u32 *iio_vals;
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/* array of pointers to sensor value */
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u32 *magn_val_addr[MAGN_3D_CHANNEL_MAX];
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struct common_attributes magn_flux_attr;
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struct common_attributes rot_attr;
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s64 timestamp;
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};
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static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = {
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HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS,
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HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS,
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HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS,
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HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH,
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HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH,
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HID_USAGE_SENSOR_ORIENT_MAGN_NORTH,
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HID_USAGE_SENSOR_ORIENT_TRUE_NORTH,
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HID_USAGE_SENSOR_TIME_TIMESTAMP,
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};
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static const u32 magn_3d_sensitivity_addresses[] = {
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HID_USAGE_SENSOR_DATA_ORIENTATION,
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HID_USAGE_SENSOR_ORIENT_MAGN_FLUX,
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};
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/* Channel definitions */
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static const struct iio_chan_spec magn_3d_channels[] = {
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{
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.type = IIO_MAGN,
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.modified = 1,
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.channel2 = IIO_MOD_X,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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}, {
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.type = IIO_MAGN,
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.modified = 1,
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.channel2 = IIO_MOD_Y,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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}, {
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.type = IIO_MAGN,
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.modified = 1,
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.channel2 = IIO_MOD_Z,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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}, {
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.type = IIO_ROT,
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.modified = 1,
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.channel2 = IIO_MOD_NORTH_MAGN_TILT_COMP,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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}, {
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.type = IIO_ROT,
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.modified = 1,
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.channel2 = IIO_MOD_NORTH_TRUE_TILT_COMP,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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}, {
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.type = IIO_ROT,
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.modified = 1,
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.channel2 = IIO_MOD_NORTH_MAGN,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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}, {
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.type = IIO_ROT,
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.modified = 1,
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.channel2 = IIO_MOD_NORTH_TRUE,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
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.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE) |
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BIT(IIO_CHAN_INFO_SAMP_FREQ) |
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BIT(IIO_CHAN_INFO_HYSTERESIS),
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},
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IIO_CHAN_SOFT_TIMESTAMP(7)
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};
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/* Adjust channel real bits based on report descriptor */
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static void magn_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels,
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int channel, int size)
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{
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channels[channel].scan_type.sign = 's';
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/* Real storage bits will change based on the report desc. */
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channels[channel].scan_type.realbits = size * 8;
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/* Maximum size of a sample to capture is u32 */
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channels[channel].scan_type.storagebits = sizeof(u32) * 8;
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}
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/* Channel read_raw handler */
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static int magn_3d_read_raw(struct iio_dev *indio_dev,
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struct iio_chan_spec const *chan,
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int *val, int *val2,
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long mask)
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{
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struct magn_3d_state *magn_state = iio_priv(indio_dev);
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int report_id = -1;
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u32 address;
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int ret_type;
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s32 min;
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*val = 0;
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*val2 = 0;
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switch (mask) {
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case IIO_CHAN_INFO_RAW:
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hid_sensor_power_state(&magn_state->magn_flux_attributes, true);
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report_id = magn_state->magn[chan->address].report_id;
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min = magn_state->magn[chan->address].logical_minimum;
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address = magn_3d_addresses[chan->address];
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if (report_id >= 0)
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*val = sensor_hub_input_attr_get_raw_value(
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magn_state->magn_flux_attributes.hsdev,
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HID_USAGE_SENSOR_COMPASS_3D, address,
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report_id,
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SENSOR_HUB_SYNC,
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min < 0);
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else {
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*val = 0;
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hid_sensor_power_state(
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&magn_state->magn_flux_attributes,
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false);
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return -EINVAL;
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}
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hid_sensor_power_state(&magn_state->magn_flux_attributes,
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false);
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ret_type = IIO_VAL_INT;
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break;
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case IIO_CHAN_INFO_SCALE:
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switch (chan->type) {
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case IIO_MAGN:
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*val = magn_state->magn_flux_attr.scale_pre_decml;
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*val2 = magn_state->magn_flux_attr.scale_post_decml;
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ret_type = magn_state->magn_flux_attr.scale_precision;
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break;
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case IIO_ROT:
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*val = magn_state->rot_attr.scale_pre_decml;
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*val2 = magn_state->rot_attr.scale_post_decml;
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ret_type = magn_state->rot_attr.scale_precision;
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break;
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default:
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ret_type = -EINVAL;
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}
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break;
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case IIO_CHAN_INFO_OFFSET:
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switch (chan->type) {
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case IIO_MAGN:
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*val = magn_state->magn_flux_attr.value_offset;
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ret_type = IIO_VAL_INT;
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break;
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case IIO_ROT:
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*val = magn_state->rot_attr.value_offset;
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ret_type = IIO_VAL_INT;
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break;
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default:
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ret_type = -EINVAL;
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}
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break;
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case IIO_CHAN_INFO_SAMP_FREQ:
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ret_type = hid_sensor_read_samp_freq_value(
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&magn_state->magn_flux_attributes, val, val2);
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break;
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case IIO_CHAN_INFO_HYSTERESIS:
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switch (chan->type) {
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case IIO_MAGN:
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ret_type = hid_sensor_read_raw_hyst_value(
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&magn_state->magn_flux_attributes, val, val2);
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break;
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case IIO_ROT:
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ret_type = hid_sensor_read_raw_hyst_value(
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&magn_state->rot_attributes, val, val2);
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break;
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default:
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ret_type = -EINVAL;
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}
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break;
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default:
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ret_type = -EINVAL;
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break;
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}
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return ret_type;
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}
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/* Channel write_raw handler */
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static int magn_3d_write_raw(struct iio_dev *indio_dev,
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struct iio_chan_spec const *chan,
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int val,
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int val2,
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long mask)
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{
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struct magn_3d_state *magn_state = iio_priv(indio_dev);
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int ret = 0;
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switch (mask) {
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case IIO_CHAN_INFO_SAMP_FREQ:
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ret = hid_sensor_write_samp_freq_value(
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&magn_state->magn_flux_attributes, val, val2);
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break;
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case IIO_CHAN_INFO_HYSTERESIS:
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switch (chan->type) {
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case IIO_MAGN:
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ret = hid_sensor_write_raw_hyst_value(
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&magn_state->magn_flux_attributes, val, val2);
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break;
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case IIO_ROT:
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ret = hid_sensor_write_raw_hyst_value(
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&magn_state->rot_attributes, val, val2);
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break;
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default:
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ret = -EINVAL;
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}
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break;
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default:
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ret = -EINVAL;
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}
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return ret;
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}
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static const struct iio_info magn_3d_info = {
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.read_raw = &magn_3d_read_raw,
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.write_raw = &magn_3d_write_raw,
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};
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/* Callback handler to send event after all samples are received and captured */
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static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev,
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unsigned usage_id,
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void *priv)
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{
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struct iio_dev *indio_dev = platform_get_drvdata(priv);
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struct magn_3d_state *magn_state = iio_priv(indio_dev);
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dev_dbg(&indio_dev->dev, "magn_3d_proc_event\n");
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if (atomic_read(&magn_state->magn_flux_attributes.data_ready)) {
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if (!magn_state->timestamp)
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magn_state->timestamp = iio_get_time_ns(indio_dev);
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iio_push_to_buffers_with_timestamp(indio_dev,
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magn_state->iio_vals,
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magn_state->timestamp);
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magn_state->timestamp = 0;
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}
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return 0;
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}
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/* Capture samples in local storage */
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static int magn_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
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unsigned usage_id,
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size_t raw_len, char *raw_data,
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void *priv)
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{
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struct iio_dev *indio_dev = platform_get_drvdata(priv);
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struct magn_3d_state *magn_state = iio_priv(indio_dev);
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int offset;
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int ret = 0;
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u32 *iio_val = NULL;
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switch (usage_id) {
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case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS:
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case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS:
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case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS:
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offset = (usage_id - HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS)
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+ CHANNEL_SCAN_INDEX_X;
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break;
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case HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH:
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case HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH:
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case HID_USAGE_SENSOR_ORIENT_MAGN_NORTH:
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case HID_USAGE_SENSOR_ORIENT_TRUE_NORTH:
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offset = (usage_id - HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH)
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+ CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP;
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break;
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case HID_USAGE_SENSOR_TIME_TIMESTAMP:
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magn_state->timestamp =
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hid_sensor_convert_timestamp(&magn_state->magn_flux_attributes,
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*(s64 *)raw_data);
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return ret;
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default:
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return -EINVAL;
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}
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iio_val = magn_state->magn_val_addr[offset];
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if (iio_val != NULL)
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*iio_val = *((u32 *)raw_data);
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else
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ret = -EINVAL;
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Parse report which is specific to an usage id*/
|
||
|
|
static int magn_3d_parse_report(struct platform_device *pdev,
|
||
|
|
struct hid_sensor_hub_device *hsdev,
|
||
|
|
struct iio_chan_spec **channels,
|
||
|
|
int *chan_count,
|
||
|
|
unsigned usage_id,
|
||
|
|
struct magn_3d_state *st)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
int attr_count = 0;
|
||
|
|
struct iio_chan_spec *_channels;
|
||
|
|
|
||
|
|
/* Scan for each usage attribute supported */
|
||
|
|
for (i = 0; i < MAGN_3D_CHANNEL_MAX; i++) {
|
||
|
|
int status;
|
||
|
|
u32 address = magn_3d_addresses[i];
|
||
|
|
|
||
|
|
/* Check if usage attribute exists in the sensor hub device */
|
||
|
|
status = sensor_hub_input_get_attribute_info(hsdev,
|
||
|
|
HID_INPUT_REPORT,
|
||
|
|
usage_id,
|
||
|
|
address,
|
||
|
|
&(st->magn[i]));
|
||
|
|
if (!status)
|
||
|
|
attr_count++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (attr_count <= 0) {
|
||
|
|
dev_err(&pdev->dev,
|
||
|
|
"failed to find any supported usage attributes in report\n");
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
dev_dbg(&pdev->dev, "magn_3d Found %d usage attributes\n",
|
||
|
|
attr_count);
|
||
|
|
dev_dbg(&pdev->dev, "magn_3d X: %x:%x Y: %x:%x Z: %x:%x\n",
|
||
|
|
st->magn[0].index,
|
||
|
|
st->magn[0].report_id,
|
||
|
|
st->magn[1].index, st->magn[1].report_id,
|
||
|
|
st->magn[2].index, st->magn[2].report_id);
|
||
|
|
|
||
|
|
/* Setup IIO channel array */
|
||
|
|
_channels = devm_kcalloc(&pdev->dev, attr_count,
|
||
|
|
sizeof(struct iio_chan_spec),
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (!_channels) {
|
||
|
|
dev_err(&pdev->dev,
|
||
|
|
"failed to allocate space for iio channels\n");
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* attr_count include timestamp channel, and the iio_vals should be aligned to 8byte */
|
||
|
|
st->iio_vals = devm_kcalloc(&pdev->dev,
|
||
|
|
((attr_count + 1) % 2 + (attr_count + 1) / 2) * 2,
|
||
|
|
sizeof(u32), GFP_KERNEL);
|
||
|
|
if (!st->iio_vals) {
|
||
|
|
dev_err(&pdev->dev,
|
||
|
|
"failed to allocate space for iio values array\n");
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0, *chan_count = 0;
|
||
|
|
i < MAGN_3D_CHANNEL_MAX && *chan_count < attr_count;
|
||
|
|
i++){
|
||
|
|
if (st->magn[i].index >= 0) {
|
||
|
|
/* Setup IIO channel struct */
|
||
|
|
(_channels[*chan_count]) = magn_3d_channels[i];
|
||
|
|
(_channels[*chan_count]).scan_index = *chan_count;
|
||
|
|
(_channels[*chan_count]).address = i;
|
||
|
|
|
||
|
|
if (i != CHANNEL_SCAN_INDEX_TIMESTAMP) {
|
||
|
|
/* Set magn_val_addr to iio value address */
|
||
|
|
st->magn_val_addr[i] = &st->iio_vals[*chan_count];
|
||
|
|
magn_3d_adjust_channel_bit_mask(_channels,
|
||
|
|
*chan_count,
|
||
|
|
st->magn[i].size);
|
||
|
|
}
|
||
|
|
(*chan_count)++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (*chan_count <= 0) {
|
||
|
|
dev_err(&pdev->dev,
|
||
|
|
"failed to find any magnetic channels setup\n");
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
*channels = _channels;
|
||
|
|
|
||
|
|
dev_dbg(&pdev->dev, "magn_3d Setup %d IIO channels\n",
|
||
|
|
*chan_count);
|
||
|
|
|
||
|
|
st->magn_flux_attr.scale_precision = hid_sensor_format_scale(
|
||
|
|
HID_USAGE_SENSOR_COMPASS_3D,
|
||
|
|
&st->magn[CHANNEL_SCAN_INDEX_X],
|
||
|
|
&st->magn_flux_attr.scale_pre_decml,
|
||
|
|
&st->magn_flux_attr.scale_post_decml);
|
||
|
|
st->rot_attr.scale_precision
|
||
|
|
= hid_sensor_format_scale(
|
||
|
|
HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH,
|
||
|
|
&st->magn[CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP],
|
||
|
|
&st->rot_attr.scale_pre_decml,
|
||
|
|
&st->rot_attr.scale_post_decml);
|
||
|
|
|
||
|
|
if (st->rot_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_ORIENT_COMP_MAGN_NORTH,
|
||
|
|
&st->rot_attributes.sensitivity);
|
||
|
|
dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
|
||
|
|
st->rot_attributes.sensitivity.index,
|
||
|
|
st->rot_attributes.sensitivity.report_id);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Function to initialize the processing for usage id */
|
||
|
|
static int hid_magn_3d_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
static char *name = "magn_3d";
|
||
|
|
struct iio_dev *indio_dev;
|
||
|
|
struct magn_3d_state *magn_state;
|
||
|
|
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
|
||
|
|
struct iio_chan_spec *channels;
|
||
|
|
int chan_count = 0;
|
||
|
|
|
||
|
|
indio_dev = devm_iio_device_alloc(&pdev->dev,
|
||
|
|
sizeof(struct magn_3d_state));
|
||
|
|
if (indio_dev == NULL)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
platform_set_drvdata(pdev, indio_dev);
|
||
|
|
|
||
|
|
magn_state = iio_priv(indio_dev);
|
||
|
|
magn_state->magn_flux_attributes.hsdev = hsdev;
|
||
|
|
magn_state->magn_flux_attributes.pdev = pdev;
|
||
|
|
|
||
|
|
ret = hid_sensor_parse_common_attributes(hsdev,
|
||
|
|
HID_USAGE_SENSOR_COMPASS_3D,
|
||
|
|
&magn_state->magn_flux_attributes,
|
||
|
|
magn_3d_sensitivity_addresses,
|
||
|
|
ARRAY_SIZE(magn_3d_sensitivity_addresses));
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&pdev->dev, "failed to setup common attributes\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
magn_state->rot_attributes = magn_state->magn_flux_attributes;
|
||
|
|
/* sensitivity of rot_attribute is not the same as magn_flux_attributes */
|
||
|
|
magn_state->rot_attributes.sensitivity.index = -1;
|
||
|
|
|
||
|
|
ret = magn_3d_parse_report(pdev, hsdev,
|
||
|
|
&channels, &chan_count,
|
||
|
|
HID_USAGE_SENSOR_COMPASS_3D, magn_state);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&pdev->dev, "failed to parse report\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
indio_dev->channels = channels;
|
||
|
|
indio_dev->num_channels = chan_count;
|
||
|
|
indio_dev->info = &magn_3d_info;
|
||
|
|
indio_dev->name = name;
|
||
|
|
indio_dev->modes = INDIO_DIRECT_MODE;
|
||
|
|
|
||
|
|
atomic_set(&magn_state->magn_flux_attributes.data_ready, 0);
|
||
|
|
|
||
|
|
ret = hid_sensor_setup_trigger(indio_dev, name,
|
||
|
|
&magn_state->magn_flux_attributes);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_err(&pdev->dev, "trigger setup failed\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = iio_device_register(indio_dev);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&pdev->dev, "device register failed\n");
|
||
|
|
goto error_remove_trigger;
|
||
|
|
}
|
||
|
|
|
||
|
|
magn_state->callbacks.send_event = magn_3d_proc_event;
|
||
|
|
magn_state->callbacks.capture_sample = magn_3d_capture_sample;
|
||
|
|
magn_state->callbacks.pdev = pdev;
|
||
|
|
ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D,
|
||
|
|
&magn_state->callbacks);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_err(&pdev->dev, "callback reg failed\n");
|
||
|
|
goto error_iio_unreg;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
error_iio_unreg:
|
||
|
|
iio_device_unregister(indio_dev);
|
||
|
|
error_remove_trigger:
|
||
|
|
hid_sensor_remove_trigger(indio_dev, &magn_state->magn_flux_attributes);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Function to deinitialize the processing for usage id */
|
||
|
|
static int hid_magn_3d_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
|
||
|
|
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
|
||
|
|
struct magn_3d_state *magn_state = iio_priv(indio_dev);
|
||
|
|
|
||
|
|
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D);
|
||
|
|
iio_device_unregister(indio_dev);
|
||
|
|
hid_sensor_remove_trigger(indio_dev, &magn_state->magn_flux_attributes);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct platform_device_id hid_magn_3d_ids[] = {
|
||
|
|
{
|
||
|
|
/* Format: HID-SENSOR-usage_id_in_hex_lowercase */
|
||
|
|
.name = "HID-SENSOR-200083",
|
||
|
|
},
|
||
|
|
{ /* sentinel */ }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(platform, hid_magn_3d_ids);
|
||
|
|
|
||
|
|
static struct platform_driver hid_magn_3d_platform_driver = {
|
||
|
|
.id_table = hid_magn_3d_ids,
|
||
|
|
.driver = {
|
||
|
|
.name = KBUILD_MODNAME,
|
||
|
|
.pm = &hid_sensor_pm_ops,
|
||
|
|
},
|
||
|
|
.probe = hid_magn_3d_probe,
|
||
|
|
.remove = hid_magn_3d_remove,
|
||
|
|
};
|
||
|
|
module_platform_driver(hid_magn_3d_platform_driver);
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("HID Sensor Magnetometer 3D");
|
||
|
|
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_IMPORT_NS(IIO_HID);
|