USBDevice: transferIn() method
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The transferIn() method of the USBDevice
interface returns a promise that resolves with a
USBInTransferResult when bulk or interrupt data is received from the USB
device.
Syntax
js
transferIn(endpointNumber, length)
Parameters
endpointNumber-
The number of a device-specific endpoint (buffer).
length-
The maximum number of bytes that will be read back from the device. The actual data is in the
USBInTransferResultin the resolved Promise.
Return value
A promise that resolves with a USBInTransferResult.
Specifications
| Specification |
|---|
| WebUSB API # ref-for-dom-usbdevice-transferin① |
Browser compatibility
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