On 19/04/14 00:22, Srinivas Pandruvada wrote:
Added support for raw reading of channel. If the sensor is powered
off, it will turn on for reading value.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
Applied.
---
drivers/iio/light/hid-sensor-prox.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 07e98ec8..d203ef4 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/slab.h>
+#include <linux/delay.h>
#include <linux/hid-sensor-hub.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@@ -75,6 +76,7 @@ static int prox_read_raw(struct iio_dev *indio_dev,
u32 address;
int ret;
int ret_type;
+ s32 poll_value;
*val = 0;
*val2 = 0;
@@ -90,12 +92,24 @@ static int prox_read_raw(struct iio_dev *indio_dev,
report_id = -1;
break;
}
- if (report_id >= 0)
+ if (report_id >= 0) {
+ poll_value = hid_sensor_read_poll_value(
+ &prox_state->common_attributes);
+ if (poll_value < 0)
+ return -EINVAL;
+
+ hid_sensor_power_state(&prox_state->common_attributes,
+ true);
+
+ msleep_interruptible(poll_value * 2);
+
*val = sensor_hub_input_attr_get_raw_value(
prox_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PROX, address,
report_id);
- else {
+ hid_sensor_power_state(&prox_state->common_attributes,
+ false);
+ } else {
*val = 0;
return -EINVAL;
}
--
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