To see which USB devices are attached I can use the lsusb command: lsusbīus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.īus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubīus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.īus 001 Device 004: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter īus 001 Device 005: ID 046d:c52b Logitech, Inc. Where is My USB Port?Īfter connecting the USB CDC device to the Raspberry, the first problem is to know which device it is using.
#LOGITECH UNIFYING SOFTWARE FOR RASPBERRY PI HOW TO#
I’m using USB CDC (see “ Tutorial: USB CDC with the KL25Z Freedom Board“) in many of my projects, so this is an elegant way how to communicate between the Raspberry Pi and an embedded microcontroller. USB CDC is a device class which implements a ‘serial over USB’ protocol. This article describes how to use the Raspberry Pi with devices connected to it using USB CDC. In a standard configuration with a USB WiFi and a USB HID (mouse plus keyboard) dongle I still can attach two Freescale (ahem, NXP) Freedom boards to the Raspberry Pi:įRDM-K22F and FRDM-K64F attached to Raspberry Pi 2 Outline
USB has the advantage that it powers the board, plus I can attach multiple devices: up to four on the Raspberry Pi 2 and even more with using a USB hub.
One way is to use USB CDC (Serial over USB) as communication channel. For my home automation project with openHAB I want to attach Freescale (now NXP) FRDM ( Freedom) boards so they can take care about the realtime aspects and to act as gateways to my other systems.
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