VS_PROBE_CONTROL
setup.wValue = VS_PROBE_CONTROL; /* wValue, PROBE or COMMIT */
if (usbvc_vs_set_probe_commit(usbvcp, strm_if, &ctrl, VS_PROBE_CONTROL)
if (usbvc_vs_set_probe_commit(usbvcp, strm_if, &ctrl, VS_PROBE_CONTROL)
if (usbvc_vs_set_probe_commit(usbvcp, strm_if, &ctrl, VS_PROBE_CONTROL)
VS_PROBE_CONTROL) != USB_SUCCESS) {