NAME
mpl115a —
Freescale MPL115A2 absolute
pressure sensor driver
SYNOPSIS
mpl115a* at iic? addr 0x60
DESCRIPTION
The
mpl115a driver provides support for the MPL115A2 pressure
sensor. It allows reporting absolute pressure through the
envsys(4) API.
SEE ALSO
envsys(4)
HISTORY
The
mpl115a device first appeared in
NetBSD
7.0.
AUTHORS
The
mpl115a driver was written by
Radoslaw
Kujawa ⟨radoslaw.kujawa@gmail.com⟩. The fixed-point
pressure calculation algorithm was suggested by
Matt
Thomas.
CAVEATS
The MPL115A2 chip has an accuracy of +/- 1 kPa, which makes it not very useful
for weather-related applications.
The
envsys(4) API does not support
pressure reporting yet, so the result is reported just as integer
number.