Symbol: TXFLOW_CTS
usr/src/uts/common/io/usb/clients/usbser/usbser_keyspan/keyspan_dsd.c
2784
ctrl_msg->txFlowControl = TXFLOW_CTS;
usr/src/uts/common/io/usb/clients/usbser/usbser_keyspan/keyspan_dsd.c
2961
ctrl_msg->txFlowControl = TXFLOW_CTS;