USBDevice.controlTransferOut

The controlTransferOut() method of the USBDevice interface returns a promise that resolves with a USBOutTransferResult when a command or status operation has been transmitted from 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 variable to contain the data that will be transfered out of the device.

Return value

A promise that resolves with a USBOutTransferResult.

Specifications

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