132 struct com_softc {  struct
133 	device_t sc_dev;
134 	void *sc_si;
135 	struct tty *sc_tty;
137 	callout_t sc_diag_callout;
138 	callout_t sc_poll_callout;
139 	struct timeval sc_hup_pending;
141 	int sc_frequency;
143 	struct com_regs sc_regs;
144 	bus_space_handle_t sc_hayespioh;
147 	u_int sc_overflows,
148 	      sc_floods,
149 	      sc_errors;
151 	int sc_hwflags,
152 	    sc_swflags;
153 	u_int sc_fifolen;
155 	u_int sc_r_hiwat,
156 	      sc_r_lowat;
157 	u_char *volatile sc_rbget,
158 	       *volatile sc_rbput;
159  	volatile u_int sc_rbavail;
160 	u_char *sc_rbuf,
161 	       *sc_ebuf;
163  	u_char *sc_tba;
164  	u_int sc_tbc,
165 	      sc_heldtbc;
167 	volatile u_char sc_rx_flags,
173 			sc_tx_busy,
174 			sc_tx_done,
175 			sc_tx_stopped,
176 			sc_st_check,
177 			sc_rx_ready;
179 	volatile u_char sc_heldchange;
180 	volatile u_char sc_msr, sc_msr_delta, sc_msr_mask, sc_mcr,
181 	    sc_mcr_active, sc_lcr, sc_ier, sc_fifo, sc_dlbl, sc_dlbh, sc_efr;
182 	u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd;
184 	u_char sc_prescaler;		/* for COM_TYPE_HAYESP */
208 	int (*enable)(struct com_softc *);  argument
209 	void (*disable)(struct com_softc *);  argument
222 void com_attach_subr(struct com_softc *);  argument