Output can be held high or low for a specified period of time.
Support for waveform capture could be added in the future.
Signed-off-by: George McCollister <george.mccollister@xxxxxxxxx>
---
Documentation/ABI/testing/sysfs-bus-iio | 7 +++++++
drivers/iio/industrialio-core.c | 3 +++
drivers/staging/iio/Documentation/iio_event_monitor.c | 2 ++
include/linux/iio/types.h | 5 ++++-
4 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index d760b02..47df169 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1028,3 +1028,10 @@ Contact: linux-iio@xxxxxxxxxxxxxxx
Description:
Raw value of rotation from true/magnetic north measured with
or without compensation from tilt sensors.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_waveformY_hightime_raw
+What: /sys/bus/iio/devices/iio:deviceX/out_waveformY_lowtime_raw
+KernelVersion: 3.18
+Contact: linux-iio@xxxxxxxxxxxxxxx
+Description:
+ Raw value of time for output to be held high or low.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index af3e76d..343e784 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -70,6 +70,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_CCT] = "cct",
[IIO_PRESSURE] = "pressure",
[IIO_HUMIDITYRELATIVE] = "humidityrelative",
+ [IIO_WAVEFORM] = "waveform",
};
static const char * const iio_modifier_names[] = {
@@ -91,6 +92,8 @@ static const char * const iio_modifier_names[] = {
[IIO_MOD_NORTH_TRUE] = "from_north_true",
[IIO_MOD_NORTH_MAGN_TILT_COMP] = "from_north_magnetic_tilt_comp",
[IIO_MOD_NORTH_TRUE_TILT_COMP] = "from_north_true_tilt_comp",
+ [IIO_MOD_HIGHTIME] = "hightime",
+ [IIO_MOD_LOWTIME] = "lowtime",
};
/* relies on pairs of these shared then separate */
diff --git a/drivers/staging/iio/Documentation/iio_event_monitor.c b/drivers/staging/iio/Documentation/iio_event_monitor.c
index 569d6f8..690f261 100644
--- a/drivers/staging/iio/Documentation/iio_event_monitor.c
+++ b/drivers/staging/iio/Documentation/iio_event_monitor.c
@@ -49,6 +49,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_CCT] = "cct",
[IIO_PRESSURE] = "pressure",
[IIO_HUMIDITYRELATIVE] = "humidityrelative",
+ [IIO_WAVEFORM] = "waveform",
};
static const char * const iio_ev_type_text[] = {
@@ -108,6 +109,7 @@ static bool event_is_known(struct iio_event_data *event)
case IIO_CCT:
case IIO_PRESSURE:
case IIO_HUMIDITYRELATIVE:
+ case IIO_WAVEFORM:
break;
default:
return false;
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 4a2af8a..d3b0af1 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -30,6 +30,7 @@ enum iio_chan_type {
IIO_CCT,
IIO_PRESSURE,
IIO_HUMIDITYRELATIVE,
+ IIO_WAVEFORM,
};
enum iio_modifier {
@@ -59,7 +60,9 @@ enum iio_modifier {
IIO_MOD_NORTH_MAGN,
IIO_MOD_NORTH_TRUE,
IIO_MOD_NORTH_MAGN_TILT_COMP,
- IIO_MOD_NORTH_TRUE_TILT_COMP
+ IIO_MOD_NORTH_TRUE_TILT_COMP,
+ IIO_MOD_HIGHTIME,
+ IIO_MOD_LOWTIME,
};
enum iio_event_type {
--
2.1.0
--
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