1. Web
  2. Web APIs
  3. USBDevice
  4. transferOut()

USBDevice: transferOut() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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.

Note: This feature is available in Web Workers.

The transferOut() method of the USBDevice interface returns a promise that resolves with a USBOutTransferResult when bulk or interrupt data is sent to the USB device.

Syntax

js
transferOut(endpointNumber, data)

Parameters

endpointNumber

The number of a device-specific endpoint (buffer).

data

A TypedArray containing the data to send to the device.

Return value

A promise that resolves with a USBOutTransferResult.

Specifications

Specification
WebUSB API
# dom-usbdevice-transferout

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
transferOut
Experimental
Chrome – Full support
Chrome 61 (Release date: 2017-09-05)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 48 (Release date: 2017-09-27)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 61 (Release date: 2017-09-05)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 45 (Release date: 2018-02-15)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – Full support
Samsung Internet 8 (Release date: 2018-07-18)
footnote Full support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – No support
WebView on iOS
footnote No support

Tip: you can click/tap on a cell for more information.

Full support
No support
Experimental. Expect behavior to change in the future.

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