USBInTransferResult
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
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 USBInTransferResult interface of the WebUSB API provides the result from a call to the transferIn() and controlTransferIn() methods of the USBDevice interface. It represents the result from requesting a transfer of data from the USB device to the USB host.
Constructor
USBInTransferResult()Experimental-
Creates a new
USBInTransferResultobject with the providedstatusanddatafields.
Instance properties
USBInTransferResult.dataRead only Experimental-
Returns a
DataViewobject containing the data received from the USB device, if any. USBInTransferResult.statusRead only Experimental-
Returns the status of the transfer request, one of:
"ok"- The transfer was successful."stall"- The device indicated an error by generating a stall condition on the endpoint. A stall on the control endpoint does not need to be cleared. A stall on a bulk or interrupt endpoint must be cleared by callingclearHalt()beforetransferIn()can be called again."babble"- The device responded with more data than was expected.
Specifications
| Specification |
|---|
| WebUSB API # usbintransferresult |
Browser compatibility
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