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
# ref-for-dom-usbdevice-transferout

Browser compatibility

BCD tables only load in the browser