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.