MPL115A(4) FreeBSD Kernel Interfaces Manual MPL115A(4)
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
<
[email protected]>. 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.
FreeBSD 14.1-RELEASE-p8 September 8, 2013 FreeBSD 14.1-RELEASE-p8