Exposes generic hwmon entries as DBus objects.
More information can be found at [Sensor Architecture](https://github.com/openbmc/docs/blob/master/sensor-architecture.md)

## To Build
```
To build this package, do the following steps:

    1. ./bootstrap.sh
    2. ./configure ${CONFIGURE_FLAGS}
    3. make

To clean the repository run `./bootstrap.sh clean`.
```

## D-Bus bus names

```
To enable the use of Linux features like cgroups prioritization and
udev/systemd control, one instance of phosphor-hwmon is intended to
be run per hwmon sysfs class instance.

This requires an algorithm for selecting a stable, well-known D-Bus busname.

The algorithm is <PREFIX>-<ID>.Hwmon<N> where PREFIX is an autoconf
configurable prefix (BUSNAME_PREFIX, xyz.openbmc_project by default),
ID is a std::hash of the /sys/devices path backing the hwmon class
instance, and N is the implemented phosphor-hwmon D-Bus API version.
```