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| author | Lorenz Meier <lm@inf.ethz.ch> | 2013-07-10 20:58:47 +0200 |
|---|---|---|
| committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-07-10 20:58:47 +0200 |
| commit | dc600e7d65df3d91fc1dabac33b6e264ef9185df (patch) | |
| tree | c975c75155a3d725e1e6ce5e6a2521931e24376f /src/drivers/drv_airspeed.h | |
| parent | 71ca3ec449fe530ff5aa24f58d858b2186054c42 (diff) | |
| download | px4-firmware-dc600e7d65df3d91fc1dabac33b6e264ef9185df.tar.gz px4-firmware-dc600e7d65df3d91fc1dabac33b6e264ef9185df.tar.bz2 px4-firmware-dc600e7d65df3d91fc1dabac33b6e264ef9185df.zip | |
First stab at IOCTL driven offset handling (in PA) for all airspeed sensors. Untested
Diffstat (limited to 'src/drivers/drv_airspeed.h')
| -rw-r--r-- | src/drivers/drv_airspeed.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/drivers/drv_airspeed.h b/src/drivers/drv_airspeed.h index bffc35c62..7bb9ee2af 100644 --- a/src/drivers/drv_airspeed.h +++ b/src/drivers/drv_airspeed.h @@ -57,5 +57,14 @@ #define _AIRSPEEDIOCBASE (0x7700) #define __AIRSPEEDIOC(_n) (_IOC(_AIRSPEEDIOCBASE, _n)) +#define AIRSPEEDIOCSSCALE __AIRSPEEDIOC(0) +#define AIRSPEEDIOCGSCALE __AIRSPEEDIOC(1) + + +/** airspeed scaling factors; out = (in * Vscale) + offset */ +struct airspeed_scale { + float offset_pa; + float scale; +}; #endif /* _DRV_AIRSPEED_H */ |