usb-detection
allows you to listen for insert/remove events of USB devices on your system.
npm install usb-detection
var usbDetect = require('usb-detection');
usbDetect.startMonitoring();
// Detect add/insert
usbDetect.on('add', function(device) { console.log('add', device); });
usbDetect.on('add:vid', function(device) { console.log('add', device); });
usbDetect.on('add:vid:pid', function(device) { console.log('add', device); });
// Detect remove
usbDetect.on('remove', function(device) { console.log('remove', device); });
usbDetect.on('remove:vid', function(device) { console.log('remove', device); });
usbDetect.on('remove:vid:pid', function(device) { console.log('remove', device); });
// Detect add or remove (change)
usbDetect.on('change', function(device) { console.log('change', device); });
usbDetect.on('change:vid', function(device) { console.log('change', device); });
usbDetect.on('change:vid:pid', function(device) { console.log('change', device); });
// Get a list of USB devices on your system, optionally filtered by `vid` or `pid`
usbDetect.find(function(err, devices) { console.log('find', devices, err); });
usbDetect.find(vid, function(err, devices) { console.log('find', devices, err); });
usbDetect.find(vid, pid, function(err, devices) { console.log('find', devices, err); });
// Promise version of `find`:
usbDetect.find().then(function(devices) { console.log(devices); }).catch(function(err) { console.log(err); });
// Allow the process to exit
//usbDetect.stopMonitoring()
Start listening for USB add/remove/change events. This will cause the Node.js process to stay open until you call usbDetect.stopMonitoring()
(see below).
Stop listening for USB add/remove/change events. This will also allow the Node.js process to exit.
This is really only meant to be called once on exit. No guarantees if you start/stop monitoring multiple times, see MadLittleMods#53
eventName
add
: also aliased asinsert
add:vid
add:vid:pid
remove
remove:vid
remove:vid:pid
change
change:vid
change:vid:pid
callback
: Function that is called whenever the event occurs- Takes a
device
- Takes a
var usbDetect = require('usb-detection');
usbDetect.startMonitoring();
usbDetect.on('add', function(device) {
console.log(device);
});
/* Console output:
{
locationId: 0,
vendorId: 5824,
productId: 1155,
deviceName: 'Teensy USB Serial (COM3)',
manufacturer: 'PJRC.COM, LLC.',
serialNumber: '',
deviceAddress: 11
}
*/
Note: All find
calls return a promise even with the node-style callback flavors.
find()
find(vid)
find(vid, pid)
find(callback)
find(vid, callback)
find(vid, pid, callback)
Parameters:
vid
: restrict search to a certain vendor idpid
: restrict search to s certain product idcallback
: Function that is called whenever the event occurs- Takes a
err
anddevices
parameter.
- Takes a
var usbDetect = require('usb-detection');
usbDetect.startMonitoring();
usbDetect.find(function(err, devices) {
console.log(devices, err);
});
// Equivalent to:
// usbDetect.find().then(function(devices) { console.log(devices); }).catch(function(err) { console.log(err); });
/* Console output:
[
{
locationId: 0,
vendorId: 0,
productId: 0,
deviceName: 'USB Root Hub',
manufacturer: '(Standard USB Host Controller)',
serialNumber: '',
deviceAddress: 2
},
{
locationId: 0,
vendorId: 5824,
productId: 1155,
deviceName: 'Teensy USB Serial (COM3)',
manufacturer: 'PJRC.COM, LLC.',
serialNumber: '',
deviceAddress: 11
}
]
*/
var usbDetect = require('usb-detection');
// Do some detection
usbDetect.startMonitoring();
// After this call, the process will be able to quit
usbDetect.stopMonitoring();
Make sure you call usbDetect.startMonitoring()
before any calls to usbDetect.find()
.
This assumes you also have everything on your system necessary to compile ANY native module for Node.js. This may not be the case, though, so please ensure the following requirements are satisfied before filing an issue about "Does not install". For all operating systems, please ensure you have Python 2.x installed AND not 3.0, node-gyp (what we use to compile) requires Python 2.x.
- Visual Studio 2013/2015 Community
- Visual Studio 2010
- Visual C++ Build Tools 2015: nodejs/node-gyp#629 (comment)
If you are having problems building, please read this.
If you are running into the The system cannot find the path specified.
error when running npm run rebuild
,
make sure you have Python 2 installed and on your PATH.
You can verify node-gyp
is configured correctly by looking at the output of node-gyp configure --verbose
.
$ node-gyp configure --verbose
...
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` succeeded python2 C:\Python27\python2.EXE
If you already have Python 3 installed, you can install Python 2 alongside and
create a symlink called python2.exe
via mklink "C:\Python27\python2.exe" "C:\Python27\python.exe"
and add the directory to your path.
Ensure that you have at a minimum, the xCode Command Line Tools installed appropriate for your system configuration. If you recently upgraded your OS, it probably removed your installation of Command Line Tools, please verify before submitting a ticket.
You know what you need for you system, basically your appropriate analog of build-essential. Keep rocking!
To compile and install native addons from npm you may also need to install build tools (source):
sudo apt-get install -y build-essential
Also install libudev:
sudo apt-get install libudev-dev
We have a suite of Mocha/Chai tests.
The tests require some manual interaction of plugging/unplugging a USB device. Follow the cyan background text instructions.
npm test