USBDevice: isochronousTransferOut() method

{{APIRef("WebUSB API")}}{{SeeCompatTable}}{{SecureContext_Header}}{{AvailableInWorkers}}

The isochronousTransferOut() method of the {{domxref("USBDevice")}} interface returns a {{jsxref("Promise")}} that resolves with a {{domxref("USBIsochronousOutTransferResult")}} when time sensitive information has been transmitted from the USB device.

Syntax

isochronousTransferOut(endpointNumber, data, packetLengths)

Parameters

• endpointNumber
  • : The number of a device-specific endpoint (buffer).
• data
  • : A {{jsxref("TypedArray")}} containing the data to send to the device.
• packetLengths
  • : An array of lengths for the packets being transferred.

Return value

A {{jsxref("Promise")}} that resolves with a {{domxref("USBIsochronousOutTransferResult")}}.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}