# -*- coding: utf-8 -*-
# (c) Copyright 2019 Sensirion AG, Switzerland
from __future__ import absolute_import, division, print_function
[docs]class I2cDevice(object):
"""
Base class for all I²C devices. Users should inherit from this class when
implementing new I²C device drivers.
The most important functionality of this class is the convenience method
:py:meth:`~sensirion_i2c_driver.device.I2cDevice.execute` which allows
derived classes to easily execute an
:py:class:`~sensirion_i2c_driver.command.I2cCommand` object.
"""
[docs] def __init__(self, connection, slave_address):
"""
Create an I²C device instance on a given connection.
:param ~sensirion_i2c_driver.connection.I2cConnection connection:
The I²C connection used to execute the commands.
:param byte slave_address:
The I²C slave address of the device.
"""
super(I2cDevice, self).__init__()
self._connection = connection
self._slave_address = slave_address
@property
def connection(self):
"""
Get the used I²C connection.
:return: The used I²C connection.
:rtype: ~sensirion_i2c_driver.connection.I2cConnection
"""
return self._connection
@property
def slave_address(self):
"""
Get the I²C slave address.
:return: The I²C slave address.
:rtype: byte
"""
return self._slave_address
[docs] def execute(self, command):
"""
Execute an I²C command on this device.
:param ~sensirion_i2c_driver.command.I2cCommand command:
The command to be executed.
:return:
The interpreted response of the executed command.
:rtype:
Depends on the executed command.
"""
return self._connection.execute(self._slave_address, command)