# -*- coding: utf-8 -*-
# (c) Copyright 2020 Sensirion AG, Switzerland
##############################################################################
##############################################################################
# _____ _ _ _______ _____ ____ _ _
# / ____| /\ | | | |__ __|_ _/ __ \| \ | |
# | | / \ | | | | | | | || | | | \| |
# | | / /\ \| | | | | | | || | | | . ` |
# | |____ / ____ \ |__| | | | _| || |__| | |\ |
# \_____/_/ \_\____/ |_| |_____\____/|_| \_|
#
# THIS FILE IS AUTOMATICALLY GENERATED AND MUST NOT BE EDITED MANUALLY!
#
# Generator: sensirion-shdlc-interface-generator 0.5.1
# Product: Sensor Bridge
# Version: 0.1.0
#
##############################################################################
##############################################################################
# flake8: noqa
from __future__ import absolute_import, division, print_function
from sensirion_shdlc_driver.command import ShdlcCommand
from struct import pack, unpack
import logging
log = logging.getLogger(__name__)
[docs]class SensorBridgeCmdI2cScanBase(ShdlcCommand):
"""
SHDLC command 0x10: "I2c Scan".
"""
[docs] def __init__(self, *args, **kwargs):
super(SensorBridgeCmdI2cScanBase, self).__init__(
0x10, *args, **kwargs)
[docs]class SensorBridgeCmdI2cScan(SensorBridgeCmdI2cScanBase):
[docs] def __init__(self, port, first_address, last_address):
"""
I2c Scan Command
Scans for I2C devices on a specific port within a certain address
range.
:param int port:
The port where the scan should be executed:
- 0x00: Port 1
- 0x01: Port 2
:param int first_address:
First address to scan (1..127).
:param int last_address:
Last address to scan (1..127 and >= first address).
"""
super(SensorBridgeCmdI2cScan, self).__init__(
data=b"".join([pack(">B", port),
pack(">B", first_address),
pack(">B", last_address)]),
max_response_time=0.1,
post_processing_time=0.0,
min_response_length=0,
max_response_length=255
)
[docs] @staticmethod
def interpret_response(data):
"""
:return: Array of bytes containing all addresses from devices which
responded to the scan.
:rtype: bytes
"""
present_device_addresses = bytes(data[0:]) # bytearray
return present_device_addresses