Pipe-management functions

usbd_open_pipe()

Initialize the pipe described by the device or endpoint descriptor.

usbd_close_pipe()

Close a pipe previously opened by the usbd_open_pipe() function.

usbd_reset_pipe()

Clear a stall condition on an endpoint identified by the pipe handle.

usbd_abort_pipe()

Abort all requests on a pipe.

usbd_pipe_device()

Retrieve the device associated with the pipe.

usbd_pipe_endpoint()

Retrieve the endpoint number associated with the pipe.