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rhusb: Initial implementation

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The driver implements support for the Omega RH-USB Humidity Probe with
Temperature sensor.  It connects via an integrated USB cable, and
appears as a serial port.

It does not currently work with Edison (as of this date) due to
missing ftdi_sio and usbserial kernel support.

It was implemented and tested on the Galileo 2.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Jon Trulson
2016-01-19 17:13:37 -07:00
committed by Mihai Tudor Panu
parent a5fd4a2c10
commit e1c66c351a
11 changed files with 586 additions and 0 deletions
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examples/javascript/rhusb.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var sensorObj = require('jsupm_rhusb');
/************** Main code **************/
var defaultDev = "/dev/ttyUSB0";
// if an argument was specified, use it as the device instead
if (process.argv.length > 2)
{
defaultDev = process.argv[2];
}
console.log("Using device " + defaultDev);
console.log("Initializing...");
// Instantiate an RHUSB instance on defaultDev
var sensor = new sensorObj.RHUSB(defaultDev);
// output the firmware ID
console.log("Firmware ID:", sensor.getFirmwareID());
console.log("");
// update and print available values every second
setInterval(function()
{
// update our values from the sensor
sensor.update();
// we show both C and F for temperature
console.log("Temperature:", sensor.getTemperature(),
"C /", sensor.getTemperature(true), "F");
console.log("Humidity:", sensor.getHumidity(), "%");
console.log("");
}, 1000);
process.on('SIGINT', function()
{
sensor = null;
sensorObj.cleanUp();
sensorObj = null;
console.log("Exiting...");
process.exit(0);
});