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clearStall()

Clears the halt condition of the pipe.

Declaration

func clearStall() throws

Discussion

When a bulk or interrupt USB endpoint encounters any input/output error other than a timeout, it transitions to a halted state. It must also clear to perform additional input/output requests on the endpoint.

This method clears the halted condition for the endpoint. It also sends a CLEAR_TT_BUFFER control request (See USB 2.0, 11.24.2.3.) to an intermediate hub, if necessary. All pending input/output requests on the endpoint abort, and the data toggle for the endpoint resets.

See Also

Sending Bulk and Interrupt I/O