/**
* I2C Backends.
* Sometimes your cpu does not have a builtin
* i2c driver or you don't want, for some reason, to
* use that.
* With this you can choose, at compile time, which backend to use.
/**
* I2C Backends.
* Sometimes your cpu does not have a builtin
* i2c driver or you don't want, for some reason, to
* use that.
* With this you can choose, at compile time, which backend to use.