CODEWITHSUNDEEP
androidusb
Gioacchino Del Prete
Gioacchino Del Prete

Reputation: 137

How can I get the id (or some unique properties) of the USB devices connected to my Android device, programmatically?

How can I get the id (or some unique properties) of the USB devices connected to my Android device?

Upvotes: 2

Views: 4661

Answers (3)

Lars Blumberg
Lars Blumberg

Reputation: 21361

You can use a combination of UsbDevice.getVendorId() and UsbDevice.getProductId() which is unique as long as the user doesn't connect the very same model of device twice, which should happen close to never.

Given that vendor ids are max. 4 hex digits you can left-shift the vendor ID by 16 bits and then add the product ID to get a model specific unique int identifier. Kotlin code:

val device: UsbDevice = ...
int modelId = (device.vendorId shl 16) + device.productId

Upvotes: 0

tstuts
tstuts

Reputation: 484

For anyone new to UsbDevice, it may be worth noting the use of UsbManager

UsbManager usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
HashMap<String, UsbDevice> usbDevices = usbManager.getDeviceList();

Read more at http://developer.android.com/reference/android/hardware/usb/UsbManager.html

Upvotes: 4

MduSenthil
MduSenthil

Reputation: 2077

You can get the unique ID of an android connected USB device using UsbDevice.getDeviceId() method.

Please check the below links for more details. http://developer.android.com/reference/android/hardware/usb/UsbDevice.html#getDeviceId()

More than Id, Please check other methods of class 'UsbDevice'. http://developer.android.com/reference/android/hardware/usb/UsbDevice.html

Upvotes: 1

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