Re: [RFC PATCH] iio: Export userspace IIO headers

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On 02/09/2015 05:49 PM, Daniel Baluta wrote:
After UAPI header file split [1] all user-kernel interfaces were
placed under include/uapi/.

This patch moves IIO user specific API from:
	* include/linux/iio/events.h => include/uapi/linux/iio/events.h
	* include/linux/iio/types.h => include/uapi/linux/iio/types.h

Now there is no need for nasty tricks to compile userspace programs
(e.g iio_event_monitor). Just installing the kernel headers with
make headers_install command does the job.

[1] http://lwn.net/Articles/507794/

Thanks for taking care of this, this is something that should have done a while ago.

[...]
index 580ed5b..146cda1 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -10,97 +10,5 @@
  #ifndef _IIO_TYPES_H_
  #define _IIO_TYPES_H_

-enum iio_chan_type {
-	IIO_VOLTAGE,
-	IIO_CURRENT,
-	IIO_POWER,
-	IIO_ACCEL,
-	IIO_ANGL_VEL,
-	IIO_MAGN,
-	IIO_LIGHT,
-	IIO_INTENSITY,
-	IIO_PROXIMITY,
-	IIO_TEMP,
-	IIO_INCLI,
-	IIO_ROT,
-	IIO_ANGL,
-	IIO_TIMESTAMP,
-	IIO_CAPACITANCE,
-	IIO_ALTVOLTAGE,
-	IIO_CCT,
-	IIO_PRESSURE,
-	IIO_HUMIDITYRELATIVE,
-	IIO_ACTIVITY,
-	IIO_STEPS,
-	IIO_ENERGY,
-	IIO_DISTANCE,
-	IIO_VELOCITY,
-};
-
-enum iio_modifier {
-	IIO_NO_MOD,
-	IIO_MOD_X,
-	IIO_MOD_Y,
-	IIO_MOD_Z,
-	IIO_MOD_X_AND_Y,
-	IIO_MOD_X_AND_Z,
-	IIO_MOD_Y_AND_Z,
-	IIO_MOD_X_AND_Y_AND_Z,
-	IIO_MOD_X_OR_Y,
-	IIO_MOD_X_OR_Z,
-	IIO_MOD_Y_OR_Z,
-	IIO_MOD_X_OR_Y_OR_Z,
-	IIO_MOD_LIGHT_BOTH,
-	IIO_MOD_LIGHT_IR,
-	IIO_MOD_ROOT_SUM_SQUARED_X_Y,
-	IIO_MOD_SUM_SQUARED_X_Y_Z,
-	IIO_MOD_LIGHT_CLEAR,
-	IIO_MOD_LIGHT_RED,
-	IIO_MOD_LIGHT_GREEN,
-	IIO_MOD_LIGHT_BLUE,
-	IIO_MOD_QUATERNION,
-	IIO_MOD_TEMP_AMBIENT,
-	IIO_MOD_TEMP_OBJECT,
-	IIO_MOD_NORTH_MAGN,
-	IIO_MOD_NORTH_TRUE,
-	IIO_MOD_NORTH_MAGN_TILT_COMP,
-	IIO_MOD_NORTH_TRUE_TILT_COMP,
-	IIO_MOD_RUNNING,
-	IIO_MOD_JOGGING,
-	IIO_MOD_WALKING,
-	IIO_MOD_STILL,
-	IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
-};
-
-enum iio_event_type {
-	IIO_EV_TYPE_THRESH,
-	IIO_EV_TYPE_MAG,
-	IIO_EV_TYPE_ROC,
-	IIO_EV_TYPE_THRESH_ADAPTIVE,
-	IIO_EV_TYPE_MAG_ADAPTIVE,
-	IIO_EV_TYPE_CHANGE,
-};

I think everything in this file below is not part of the ABI and should not be exported to userspace.

-
-enum iio_event_info {
-	IIO_EV_INFO_ENABLE,
-	IIO_EV_INFO_VALUE,
-	IIO_EV_INFO_HYSTERESIS,
-	IIO_EV_INFO_PERIOD,
-};
-
-enum iio_event_direction {
-	IIO_EV_DIR_EITHER,
-	IIO_EV_DIR_RISING,
-	IIO_EV_DIR_FALLING,
-	IIO_EV_DIR_NONE,
-};
-
-#define IIO_VAL_INT 1
-#define IIO_VAL_INT_PLUS_MICRO 2
-#define IIO_VAL_INT_PLUS_NANO 3
-#define IIO_VAL_INT_PLUS_MICRO_DB 4
-#define IIO_VAL_INT_MULTIPLE 5
-#define IIO_VAL_FRACTIONAL 10
-#define IIO_VAL_FRACTIONAL_LOG2 11
-
[...]

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