mpl115a(4) - NetBSD Manual Pages

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MPL115A(4)              NetBSD 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
     <radoslaw.kujawa@gmail.com>.  The fixed-point pressure calculation algo-
     rithm 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.

NetBSD 9.2                     September 8, 2013                    NetBSD 9.2