From 5a1a932981415661827f7edd9e99943a2a3b7b67 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Sun, 11 Jan 2015 21:10:09 +0200 Subject: iio: core: Introduce IIO_VELOCITY and IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z Some devices export the current speed value of the user. One of this devices is Freescale's MMA9553L (http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf) that computes the speed of the user based on the number of steps and stride length. Introduce a new channel type VELOCITY and a modifier for the magniture or norm of the velocity vector, IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index c627a9a1cd56..80b5efb1cdbf 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -295,6 +295,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale +What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale KernelVersion: 2.6.35 Contact: linux-iio@vger.kernel.org Description: @@ -1164,3 +1165,12 @@ Contact: linux-iio@vger.kernel.org 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_velocity_sqrt(x^2+y^2+z^2)_input +What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw +KernelVersion: 3.19 +Contact: linux-iio@vger.kernel.org +Description: + This attribute is used to read the current speed value of the + user (which is the norm or magnitude of the velocity vector). + Units after application of scale are m/s. -- cgit