On 09/18/13 18:13, Srinivas Pandruvada wrote:
> Call hid_sensor_hub_device_open when user space opens device and call
> hid_sensor_hub_device_close when device is closed. This helps in
> saving power.
>
> Signed-off-by: Srinivas Pandruvada <[email protected]>
Applied to the togreg branch of iio.git
Thanks,
> ---
> drivers/iio/common/hid-sensors/hid-sensor-trigger.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> index 87419c4..b6e77e0 100644
> --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> @@ -34,6 +34,12 @@ static int hid_sensor_data_rdy_trigger_set_state(struct
> iio_trigger *trig,
> struct hid_sensor_common *st = iio_trigger_get_drvdata(trig);
> int state_val;
>
> + if (state) {
> + if (sensor_hub_device_open(st->hsdev))
> + return -EIO;
> + } else
> + sensor_hub_device_close(st->hsdev);
> +
> state_val = state ? 1 : 0;
> if (IS_ENABLED(CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS))
> ++state_val;
>
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