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ftdi_sio.h 35.8 KiB
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 * 
 * Offset	Description
 * B0	Data Ready (DR)
 * B1	Overrun Error (OE)
 * B2	Parity Error (PE)
 * B3	Framing Error (FE)
 * B4	Break Interrupt (BI)
 * B5	Transmitter Holding Register (THRE)
 * B6	Transmitter Empty (TEMT)
 * B7	Error in RCVR FIFO
 * 
 */
#define FTDI_RS0_CTS	(1 << 4)
#define FTDI_RS0_DSR	(1 << 5)
#define FTDI_RS0_RI	(1 << 6)
#define FTDI_RS0_RLSD	(1 << 7)

#define FTDI_RS_DR  1
#define FTDI_RS_OE (1<<1)
#define FTDI_RS_PE (1<<2)
#define FTDI_RS_FE (1<<3)
#define FTDI_RS_BI (1<<4)
#define FTDI_RS_THRE (1<<5)
#define FTDI_RS_TEMT (1<<6)
#define FTDI_RS_FIFO  (1<<7)

/*
 * OUT Endpoint
 * 
 * This device reserves the first bytes of data on this endpoint contain the length
 * and port identifier of the message. For the FTDI USB Serial converter the port 
 * identifier is always 1.
 * 
 * Byte 0: Line Status
 * 
 * Offset	Description
 * B0	Reserved - must be 1
 * B1	Reserved - must be 0
 * B2..7	Length of message - (not including Byte 0)
 * 
 */