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typedef struct Serial Serial;
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typedef struct Serialops Serialops;
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typedef struct Serialport Serialport;
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struct Serialops {
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	int	(*seteps)(Serialport*);
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	int	(*init)(Serialport*);
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	int	(*getparam)(Serialport*);
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	int	(*setparam)(Serialport*);
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	int	(*clearpipes)(Serialport*);
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	int	(*reset)(Serial*, Serialport*);
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	int	(*sendlines)(Serialport*);
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	int	(*modemctl)(Serialport*, int);
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	int	(*setbreak)(Serialport*, int);
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	int	(*readstatus)(Serialport*);
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	int	(*wait4data)(Serialport*, uchar *, int);
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	int	(*wait4write)(Serialport*, uchar *, int);
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};
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enum {
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	DataBufSz = 8*1024,
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	Maxifc = 16,
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};
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struct Serialport {
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	char name[32];
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	Serial	*s;		/* device we belong to */
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	int	isjtag;
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	Dev	*epintr;	/* may not exist */
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	Dev	*epin;
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	Dev	*epout;
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	Usbfs	fs;
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	uchar	ctlstate;
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	/* serial parameters */
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	uint	baud;
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	int	stop;
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	int	mctl;
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	int	parity;
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	int	bits;
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	int	fifo;
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	int	limit;
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	int	rts;
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	int	cts;
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	int	dsr;
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	int	dcd;
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	int	dtr;
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	int	rlsd;
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	vlong	timer;
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	int	blocked;	/* for sw flow ctl. BUG: not implemented yet */
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	int	nbreakerr;
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	int	ring;
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	int	nframeerr;
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	int	nparityerr;
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	int	novererr;
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	int	enabled;
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	int	interfc;	/* interfc on the device for ftdi */
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	Channel *w4data;
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	Channel *gotdata;
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	Channel *readc;		/* to uncouple reads, only used in ftdi... */
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	int	ndata;
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	uchar	data[DataBufSz];
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};
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struct Serial {
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	QLock;
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	Dev	*dev;		/* usb device*/
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	int	type;		/* serial model subtype */
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	int	recover;	/* # of non-fatal recovery tries */
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	Serialops;
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	int	hasepintr;
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	int	jtag;		/* index of jtag interface, -1 none */
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	int	nifcs;		/* # of serial interfaces, including JTAG */
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	Serialport p[Maxifc];
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	int	maxrtrans;
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	int	maxwtrans;
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	int	maxread;
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	int	maxwrite;
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	int	inhdrsz;
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	int	outhdrsz;
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	int	baudbase;	/* for special baud base settings, see ftdi */
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};
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enum {
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	/* soft flow control chars */
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	CTLS	= 023,
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	CTLQ	= 021,
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	CtlDTR	= 1,
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	CtlRTS	= 2,
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};
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/*
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 * !hget http://lxr.linux.no/source/drivers/usb/serial/pl2303.h|htmlfmt
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 * !hget http://lxr.linux.no/source/drivers/usb/serial/pl2303.c|htmlfmt
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 */
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int serialmain(Dev *d, int argc, char *argv[]);
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typedef struct Cinfo Cinfo;
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struct Cinfo {
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	int	vid;		/* usb vendor id */
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	int	did;		/* usb device/product id */
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	int	cid;		/* controller id assigned by us */
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};
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extern Cinfo plinfo[];
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extern Cinfo uconsinfo[];
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extern int serialdebug;
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#define	dsprint	if(serialdebug)fprint
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int	serialrecover(Serial *ser, Serialport *p, Dev *ep, char *err);
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int	serialreset(Serial *ser);
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char	*serdumpst(Serialport *p, char *buf, int bufsz);