USB
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The USB
interface of the WebUSB API provides attributes and methods for finding and connecting USB devices from a web page.
Use navigator.usb
to get access to the USB
object.
The USB interface inherits from EventTarget
.
Properties
None.
Methods
USB.getDevices()
-
Returns a
Promise
that resolves with an array ofUSBDevice
objects for paired attached devices. USB.requestDevice()
-
Returns a
Promise
that resolves with an instance ofUSBDevice
if the specified device is found. Calling this function triggers the user agent's pairing flow.
Events
connect
-
Fired whenever a previously paired device is connected.
disconnect
-
Fired whenever a paired device is disconnected.
Specifications
Specification |
---|
WebUSB API # usb |
Browser compatibility
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