From 5a1a932981415661827f7edd9e99943a2a3b7b67 Mon Sep 17 00:00:00 2001 From: Irina Tirdea <irina.tirdea@intel.com> 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 <irina.tirdea@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> --- drivers/iio/industrialio-core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/iio') diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 655755b49ccd..18a8ab911aab 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -74,6 +74,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_STEPS] = "steps", [IIO_ENERGY] = "energy", [IIO_DISTANCE] = "distance", + [IIO_VELOCITY] = "velocity", }; static const char * const iio_modifier_names[] = { @@ -99,6 +100,7 @@ static const char * const iio_modifier_names[] = { [IIO_MOD_JOGGING] = "jogging", [IIO_MOD_WALKING] = "walking", [IIO_MOD_STILL] = "still", + [IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z] = "sqrt(x^2+y^2+z^2)", }; /* relies on pairs of these shared then separate */ -- cgit v1.2.3