111 struct zs_chanstate {  struct
114 	volatile uint8_t *cs_reg_csr; 	/* ctrl, status, and reg. number. */
115 	volatile uint8_t *cs_reg_data;	/* data or numbered register */
117 	int	cs_channel;		/* sub-unit number */
118 	void   *cs_private;		/* sub-driver data pointer */
119 	struct zsops *cs_ops;
121 	kmutex_t cs_lock;		/* per channel lock */
123 	int	cs_brg_clk;		/* BAUD Rate Generator clock
125 	int	cs_defspeed;		/* default baud rate */
126 	int	cs_defcflag;		/* default cflag */
141 	uint8_t	cs_creg[16];		/* current values */
165 	struct  zs_chanstate *cs_ctl_chan;  argument
168 	int	(*enable)(struct zs_chanstate *);  argument
169 	void	(*disable)(struct zs_chanstate *);  argument
170 	int	enabled;