initialiseRaw method
Initialise raw - mraa_i2c_init_raw
Initialise an MraaI2cContext, using I2C bus to use i.e. /dev/i2c-2 would be "2" Returns the initialised MraaI2cContext or NULL
Implementation
MraaI2cContext initialiseRaw(int bus) => _impl.mraa_i2c_init_raw(bus);