Some devices export an estimation of the distance the user has covered since the last reset.
One of this devices is Freescale's MMA9553L (http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf) that computes the distance based on the stride length and step rate. Introduce a new channel type DISTANCE to export these values. Signed-off-by: Irina Tirdea <irina.tir...@intel.com> --- Documentation/ABI/testing/sysfs-bus-iio | 9 +++++++++ drivers/iio/industrialio-core.c | 1 + include/linux/iio/types.h | 1 + 3 files changed, 11 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index bb9342b..a5c1dcc 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -283,6 +283,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale What: /sys/bus/iio/devices/iio:deviceX/in_calories_scale +What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale @@ -1058,6 +1059,14 @@ Description: This attribute is used to read the number of calories burned since the last reset. Units after application of scale are Joules. +What: /sys/.../iio:deviceX/in_distance_input +What: /sys/.../iio:deviceX/in_distance_raw +KernelVersion: 3.17 +Contact: linux-...@vger.kernel.org +Description: + This attribute is used to read the distance covered by the user since + the last reboot while activated. Units after application of scale are meters. + What: /sys/bus/iio/devices/iio:deviceX/store_eeprom KernelVersion: 3.4.0 Contact: linux-...@vger.kernel.org diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 5d95e84..4a10d31 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -73,6 +73,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_ACTIVITY] = "activity", [IIO_STEPS] = "steps", [IIO_CALORIES] = "calories", + [IIO_DISTANCE] = "distance", }; static const char * const iio_modifier_names[] = { diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h index d2fe930..b98f751 100644 --- a/include/linux/iio/types.h +++ b/include/linux/iio/types.h @@ -33,6 +33,7 @@ enum iio_chan_type { IIO_ACTIVITY, IIO_STEPS, IIO_CALORIES, + IIO_DISTANCE, }; enum iio_modifier { -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
