From: Irina Tirdea <irina.tirdea@xxxxxxxxx> One of the functionalities of a pedometer is a step counter. The step counter needs to be enabled and then it will count the steps in its hardware register. Whenever the applications need to check the step count, they will read the step counter register. To support this functionality we need a steps attribute that will export the number of steps. For more information on the pedometer requirements for Android see http://source.android.com/devices/sensors/composite_sensors.html#counter. A device that has the pedometer functionality this interface needs to support is Freescale's MMA9553L: http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf Signed-off-by: Irina Tirdea <irina.tirdea@xxxxxxxxx> Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxxxx> --- Documentation/ABI/testing/sysfs-bus-iio | 7 +++++++ drivers/iio/industrialio-core.c | 1 + include/linux/iio/types.h | 1 + 3 files changed, 9 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 070346d..feacb45 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -949,6 +949,13 @@ Description: and the relevant _type attributes to establish the data storage format. +What: /sys/.../iio:deviceX/in_activity_steps_raw +KernelVersion: 3.17 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + This attribute is used to read the number of steps taken by the user + since the last reboot while activated. + What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw KernelVersion: 2.6.38 Contact: linux-iio@xxxxxxxxxxxxxxx diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index e453ef9..935a8a1 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -96,6 +96,7 @@ static const char * const iio_modifier_names[] = { [IIO_MOD_JOGGING] = "jogging", [IIO_MOD_WALKING] = "walking", [IIO_MOD_STILL] = "still", + [IIO_MOD_PED_STEPS] = "steps", }; /* relies on pairs of these shared then separate */ diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h index 003638d..ae51780 100644 --- a/include/linux/iio/types.h +++ b/include/linux/iio/types.h @@ -65,6 +65,7 @@ enum iio_modifier { IIO_MOD_JOGGING, IIO_MOD_WALKING, IIO_MOD_STILL, + IIO_MOD_PED_STEPS, }; enum iio_event_type { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
