UVSCOM_DSR        131 dev/usb/uvscom.c #define UVSCOM_USTAT_MASK	(UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS)
UVSCOM_DSR        851 dev/usb/uvscom.c 	if (ISSET(pstatus, UVSCOM_DSR))