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Commit bcdf28fb authored by Irina Tirdea's avatar Irina Tirdea Committed by Jonathan Cameron
Browse files

iio: core: Introduce IIO_CHAN_INFO_CALIBHEIGHT 

Some devices need the height of the user to compute various
parameters. One of this devices is Freescale's MMA9553L
(http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf

)
that needs the height of the user to compute the stride length which
is used further to determine distance, speed and activity type.

Signed-off-by: default avatarIrina Tirdea <irina.tirdea@intel.com>
Signed-off-by: default avatarDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent a88bfe78

Documentation/ABI/testing/sysfs-bus-iio

+8 −0
Original line number Diff line number Diff line
@@ -323,6 +323,14 @@ Description: 
		production inaccuracies).  If shared across all channels,

		<type>_calibscale is used.



What:		/sys/bus/iio/devices/iio:deviceX/in_steps_calibheight

KernelVersion:	3.19

Contact:	linux-iio@vger.kernel.org

Description:

		Height of the user (in centimeters) used by some pedometers

		to compute the stride length, distance, speed and activity

		type.



What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available

What:		/sys/.../iio:deviceX/in_voltageX_scale_available

What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available

drivers/iio/industrialio-core.c

+1 −0
Original line number Diff line number Diff line
@@ -120,6 +120,7 @@ static const char * const iio_chan_info_postfix[] = { 
	[IIO_CHAN_INFO_HYSTERESIS] = "hysteresis",

	[IIO_CHAN_INFO_INT_TIME] = "integration_time",

	[IIO_CHAN_INFO_ENABLE] = "en",

	[IIO_CHAN_INFO_CALIBHEIGHT] = "calibheight",

};



/**

include/linux/iio/iio.h

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ enum iio_chan_info_enum { 
	IIO_CHAN_INFO_HYSTERESIS,

	IIO_CHAN_INFO_INT_TIME,

	IIO_CHAN_INFO_ENABLE,

	IIO_CHAN_INFO_CALIBHEIGHT,

};



enum iio_shared_by {