diff options
| -rw-r--r-- | drivers/iio/common/hid-sensors/hid-sensor-attributes.c | 20 | ||||
| -rw-r--r-- | include/linux/hid-sensor-hub.h | 2 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c index e61b1faa1e06..372964635ccf 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c @@ -147,6 +147,26 @@ static u32 convert_to_vtf_format(int size, int exp, int val1, int val2) return value; } +s32 hid_sensor_read_poll_value(struct hid_sensor_common *st) +{ + s32 value = 0; + int ret; + + ret = sensor_hub_get_feature(st->hsdev, + st->poll.report_id, + st->poll.index, &value); + + if (ret < 0 || value < 0) { + return -EINVAL; + } else { + if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) + value = value * 1000; + } + + return value; +} +EXPORT_SYMBOL(hid_sensor_read_poll_value); + int hid_sensor_read_samp_freq_value(struct hid_sensor_common *st, int *val1, int *val2) { diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h index 89626b23c246..88d8d636a68f 100644 --- a/include/linux/hid-sensor-hub.h +++ b/include/linux/hid-sensor-hub.h @@ -227,4 +227,6 @@ int hid_sensor_format_scale(u32 usage_id, struct hid_sensor_hub_attribute_info *attr_info, int *val0, int *val1); +s32 hid_sensor_read_poll_value(struct hid_sensor_common *st); + #endif |