USBDevice.controlTransferOut()

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The controlTransferOut() method of the USBDevice interface returns a promise that resolves with a USBOutTransferResult when a command or status operation has been transmitted to the USB device.

Syntax

var promise = USBDevice.controlTransferOut(setup, data)

Parameters

setup

An object that sets options for . The available options are:

  • requestType: Must be one of three values specifying whether the tranfer is "standard" (common to all USB devices) "class" (common to an industry-standard class of devices) or "vendor".
  • recipient: Specifices the target of the transfer on the device, one of "device", "interface", "endpoint", or "other".
  • request: A vendor-specific command.
  • value: Vender-specific request parameters.
  • index: The interface number of the recipient.
data

A TypedArray containing the data that will be transfered to the device. Not all commands require data; some commands can send data just through the value parameter. Check with your device to see what the specific request requires.

Return value

A promise that resolves with a USBOutTransferResult.

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
controlTransferOut
61
79
No
No
48
No
No
61
No
45
No
8.0

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/USBDevice/controlTransferOut