code: func (mc *MCP23017Config) getUint8Value() uint8 {
  	return mc.Bank<<7 | mc.Mirror<<6 | mc.Seqop<<5 | mc.Disslw<<4 | mc.Haen<<3 | mc.Odr<<2 | mc.Intpol<<1
  }
docs: // getUint8Value returns the configuration data as a packed value.