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.
transferOut(endpointNumber, data)endpointNumberThe number of a device-specific endpoint (buffer).
dataA TypedArray containing the data to send to the device.
A Promise that resolves with a USBOutTransferResult.