mpl115a
—
Freescale MPL115A2 absolute pressure sensor driver
mpl115a* at iic? addr 0x60
The mpl115a
driver provides support for the MPL115A2
pressure sensor. It allows reporting absolute pressure through the
envsys(4) API.
The mpl115a
device first appeared in
NetBSD 7.0.
The mpl115a
driver was written by
Radoslaw Kujawa
⟨radoslaw.kujawa@gmail.com⟩. The fixed-point pressure
calculation algorithm was suggested by Matt Thomas.
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.