diydrones/PX4Firmware — pull request #12 by Slatye (2014-07-08 07:45:50+00:00)
Title: airspeed: allow adjustment of differential pressure scaling for MEAS sensors

Implements ioctl call to allow differential pressure scaling to be adjusted. This allows the code to be used with sensors in the MS4525DO and Honeywell HSC/SSC series with different sensitivity levels. Default scaling is the same as before (ie correct for the MS4525DO +/- 1 PSI sensor).