SICR_DSR         1305 drivers/tty/synclink.c 				usc_DisablestatusIrqs(info,SICR_DSR);
SICR_DSR         1885 drivers/tty/synclink.c 	usc_EnableStatusIrqs(info,SICR_CTS+SICR_DSR+SICR_DCD+SICR_RI);