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Add FT232H drive/strength/slew/schmitt trigger
[libftdi] / src / ftdi.h
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1/***************************************************************************
2 ftdi.h - description
3 -------------------
4 begin : Fri Apr 4 2003
5 copyright : (C) 2003-2011 by Intra2net AG and the libftdi developers
6 email : opensource@intra2net.com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU Lesser General Public License *
13 * version 2.1 as published by the Free Software Foundation; *
14 * *
15 ***************************************************************************/
16
17#ifndef __libftdi_h__
18#define __libftdi_h__
19
20#include <libusb.h>
21
22/* Even on 93xx66 at max 256 bytes are used (AN_121)*/
23#define FTDI_MAX_EEPROM_SIZE 256
24
25/** FTDI chip type */
26enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2, TYPE_R=3, TYPE_2232H=4, TYPE_4232H=5, TYPE_232H=6 };
27/** Parity mode for ftdi_set_line_property() */
28enum ftdi_parity_type { NONE=0, ODD=1, EVEN=2, MARK=3, SPACE=4 };
29/** Number of stop bits for ftdi_set_line_property() */
30enum ftdi_stopbits_type { STOP_BIT_1=0, STOP_BIT_15=1, STOP_BIT_2=2 };
31/** Number of bits for ftdi_set_line_property() */
32enum ftdi_bits_type { BITS_7=7, BITS_8=8 };
33/** Break type for ftdi_set_line_property2() */
34enum ftdi_break_type { BREAK_OFF=0, BREAK_ON=1 };
35
36/** MPSSE bitbang modes */
37enum ftdi_mpsse_mode
38{
39 BITMODE_RESET = 0x00, /**< switch off bitbang mode, back to regular serial/FIFO */
40 BITMODE_BITBANG= 0x01, /**< classical asynchronous bitbang mode, introduced with B-type chips */
41 BITMODE_MPSSE = 0x02, /**< MPSSE mode, available on 2232x chips */
42 BITMODE_SYNCBB = 0x04, /**< synchronous bitbang mode, available on 2232x and R-type chips */
43 BITMODE_MCU = 0x08, /**< MCU Host Bus Emulation mode, available on 2232x chips */
44 /* CPU-style fifo mode gets set via EEPROM */
45 BITMODE_OPTO = 0x10, /**< Fast Opto-Isolated Serial Interface Mode, available on 2232x chips */
46 BITMODE_CBUS = 0x20, /**< Bitbang on CBUS pins of R-type chips, configure in EEPROM before */
47 BITMODE_SYNCFF = 0x40, /**< Single Channel Synchronous FIFO mode, available on 2232H chips */
48};
49
50/** Port interface for chips with multiple interfaces */
51enum ftdi_interface
52{
53 INTERFACE_ANY = 0,
54 INTERFACE_A = 1,
55 INTERFACE_B = 2,
56 INTERFACE_C = 3,
57 INTERFACE_D = 4
58};
59
60/** Automatic loading / unloading of kernel modules */
61enum ftdi_module_detach_mode
62{
63 AUTO_DETACH_SIO_MODULE = 0,
64 DONT_DETACH_SIO_MODULE = 1
65};
66
67/* Shifting commands IN MPSSE Mode*/
68#define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/
69#define MPSSE_BITMODE 0x02 /* Write bits, not bytes */
70#define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */
71#define MPSSE_LSB 0x08 /* LSB first */
72#define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */
73#define MPSSE_DO_READ 0x20 /* Read TDO/DI */
74#define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */
75
76/* FTDI MPSSE commands */
77#define SET_BITS_LOW 0x80
78/*BYTE DATA*/
79/*BYTE Direction*/
80#define SET_BITS_HIGH 0x82
81/*BYTE DATA*/
82/*BYTE Direction*/
83#define GET_BITS_LOW 0x81
84#define GET_BITS_HIGH 0x83
85#define LOOPBACK_START 0x84
86#define LOOPBACK_END 0x85
87#define TCK_DIVISOR 0x86
88/* H Type specific commands */
89#define DIS_DIV_5 0x8a
90#define EN_DIV_5 0x8b
91#define EN_3_PHASE 0x8c
92#define DIS_3_PHASE 0x8d
93#define CLK_BITS 0x8e
94#define CLK_BYTES 0x8f
95#define CLK_WAIT_HIGH 0x94
96#define CLK_WAIT_LOW 0x95
97#define EN_ADAPTIVE 0x96
98#define DIS_ADAPTIVE 0x97
99#define CLK_BYTES_OR_HIGH 0x9c
100#define CLK_BYTES_OR_LOW 0x0d
101/*FT232H specific commands */
102#define DRIVE_OPEN_COLLECTOR 0x9e
103/* Value Low */
104/* Value HIGH */ /*rate is 12000000/((1+value)*2) */
105#define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1)
106
107/* Commands in MPSSE and Host Emulation Mode */
108#define SEND_IMMEDIATE 0x87
109#define WAIT_ON_HIGH 0x88
110#define WAIT_ON_LOW 0x89
111
112/* Commands in Host Emulation Mode */
113#define READ_SHORT 0x90
114/* Address_Low */
115#define READ_EXTENDED 0x91
116/* Address High */
117/* Address Low */
118#define WRITE_SHORT 0x92
119/* Address_Low */
120#define WRITE_EXTENDED 0x93
121/* Address High */
122/* Address Low */
123
124/* Definitions for flow control */
125#define SIO_RESET 0 /* Reset the port */
126#define SIO_MODEM_CTRL 1 /* Set the modem control register */
127#define SIO_SET_FLOW_CTRL 2 /* Set flow control register */
128#define SIO_SET_BAUD_RATE 3 /* Set baud rate */
129#define SIO_SET_DATA 4 /* Set the data characteristics of the port */
130
131#define FTDI_DEVICE_OUT_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT)
132#define FTDI_DEVICE_IN_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN)
133
134/* Requests */
135#define SIO_RESET_REQUEST SIO_RESET
136#define SIO_SET_BAUDRATE_REQUEST SIO_SET_BAUD_RATE
137#define SIO_SET_DATA_REQUEST SIO_SET_DATA
138#define SIO_SET_FLOW_CTRL_REQUEST SIO_SET_FLOW_CTRL
139#define SIO_SET_MODEM_CTRL_REQUEST SIO_MODEM_CTRL
140#define SIO_POLL_MODEM_STATUS_REQUEST 0x05
141#define SIO_SET_EVENT_CHAR_REQUEST 0x06
142#define SIO_SET_ERROR_CHAR_REQUEST 0x07
143#define SIO_SET_LATENCY_TIMER_REQUEST 0x09
144#define SIO_GET_LATENCY_TIMER_REQUEST 0x0A
145#define SIO_SET_BITMODE_REQUEST 0x0B
146#define SIO_READ_PINS_REQUEST 0x0C
147#define SIO_READ_EEPROM_REQUEST 0x90
148#define SIO_WRITE_EEPROM_REQUEST 0x91
149#define SIO_ERASE_EEPROM_REQUEST 0x92
150
151
152#define SIO_RESET_SIO 0
153#define SIO_RESET_PURGE_RX 1
154#define SIO_RESET_PURGE_TX 2
155
156#define SIO_DISABLE_FLOW_CTRL 0x0
157#define SIO_RTS_CTS_HS (0x1 << 8)
158#define SIO_DTR_DSR_HS (0x2 << 8)
159#define SIO_XON_XOFF_HS (0x4 << 8)
160
161#define SIO_SET_DTR_MASK 0x1
162#define SIO_SET_DTR_HIGH ( 1 | ( SIO_SET_DTR_MASK << 8))
163#define SIO_SET_DTR_LOW ( 0 | ( SIO_SET_DTR_MASK << 8))
164#define SIO_SET_RTS_MASK 0x2
165#define SIO_SET_RTS_HIGH ( 2 | ( SIO_SET_RTS_MASK << 8 ))
166#define SIO_SET_RTS_LOW ( 0 | ( SIO_SET_RTS_MASK << 8 ))
167
168#define SIO_RTS_CTS_HS (0x1 << 8)
169
170/* marker for unused usb urb structures
171 (taken from libusb) */
172#define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
173
174#ifdef __GNUC__
175 #define DEPRECATED(func) func __attribute__ ((deprecated))
176#elif defined(_MSC_VER)
177 #define DEPRECATED(func) __declspec(deprecated) func
178#else
179 #pragma message("WARNING: You need to implement DEPRECATED for this compiler")
180 #define DEPRECATED(func) func
181#endif
182
183struct ftdi_transfer_control
184{
185 int completed;
186 unsigned char *buf;
187 int size;
188 int offset;
189 struct ftdi_context *ftdi;
190 struct libusb_transfer *transfer;
191};
192
193/**
194 \brief FTDI eeprom structure
195*/
196struct ftdi_eeprom
197{
198 /** vendor id */
199 int vendor_id;
200 /** product id */
201 int product_id;
202
203 /** self powered */
204 int self_powered;
205 /** remote wakeup */
206 int remote_wakeup;
207
208 int is_not_pnp;
209
210 /* Suspend on DBUS7 Low */
211 int suspend_dbus7;
212
213 /** input in isochronous transfer mode */
214 int in_is_isochronous;
215 /** output in isochronous transfer mode */
216 int out_is_isochronous;
217 /** suspend pull downs */
218 int suspend_pull_downs;
219
220 /** use serial */
221 int use_serial;
222 /** usb version */
223 int usb_version;
224 /** Use usb version on FT2232 devices*/
225 int use_usb_version;
226 /** maximum power */
227 int max_power;
228
229 /** manufacturer name */
230 char *manufacturer;
231 /** product name */
232 char *product;
233 /** serial number */
234 char *serial;
235
236 /* 2232D/H(/FT4432H?) specific */
237 /* Hardware type, 0 = RS232 Uart, 1 = 245 FIFO, 2 = CPU FIFO,
238 4 = OPTO Isolate */
239 int channel_a_type;
240 int channel_b_type;
241 /* Driver Type, 1 = VCP */
242 int channel_a_driver;
243 int channel_b_driver;
244
245 /* Special function of FT232R devices (and possibly others as well) */
246 /** CBUS pin function. See CBUS_xxx defines. */
247 int cbus_function[5];
248 /** Select hight current drive on R devices. */
249 int high_current;
250 /** Select hight current drive on A channel (2232C */
251 int high_current_a;
252 /** Select hight current drive on B channel (2232C). */
253 int high_current_b;
254 /** Select inversion of data lines (bitmask). */
255 int invert;
256
257 /*2232H/4432H Group specific values */
258 /* Group0 is AL on 2322H and A on 4232H
259 Group1 is AH on 2232H and B on 4232H
260 Group2 is BL on 2322H and C on 4232H
261 Group3 is BH on 2232H and C on 4232H*/
262 int group0_drive;
263 int group0_schmitt;
264 int group0_slew;
265 int group1_drive;
266 int group1_schmitt;
267 int group1_slew;
268 int group2_drive;
269 int group2_schmitt;
270 int group2_slew;
271 int group3_drive;
272 int group3_schmitt;
273 int group3_slew;
274
275 /** eeprom size in bytes. This doesn't get stored in the eeprom
276 but is the only way to pass it to ftdi_eeprom_build. */
277 int size;
278 /* EEPROM Type 0x46 for 93xx46, 0x56 for 93xx56 and 0x66 for 93xx66*/
279 int chip;
280 unsigned char buf[FTDI_MAX_EEPROM_SIZE];
281};
282
283/**
284 \brief Main context structure for all libftdi functions.
285
286 Do not access directly if possible.
287*/
288struct ftdi_context
289{
290 /* USB specific */
291 /** libusb's context */
292 struct libusb_context *usb_ctx;
293 /** libusb's usb_dev_handle */
294 struct libusb_device_handle *usb_dev;
295 /** usb read timeout */
296 int usb_read_timeout;
297 /** usb write timeout */
298 int usb_write_timeout;
299
300 /* FTDI specific */
301 /** FTDI chip type */
302 enum ftdi_chip_type type;
303 /** baudrate */
304 int baudrate;
305 /** bitbang mode state */
306 unsigned char bitbang_enabled;
307 /** pointer to read buffer for ftdi_read_data */
308 unsigned char *readbuffer;
309 /** read buffer offset */
310 unsigned int readbuffer_offset;
311 /** number of remaining data in internal read buffer */
312 unsigned int readbuffer_remaining;
313 /** read buffer chunk size */
314 unsigned int readbuffer_chunksize;
315 /** write buffer chunk size */
316 unsigned int writebuffer_chunksize;
317 /** maximum packet size. Needed for filtering modem status bytes every n packets. */
318 unsigned int max_packet_size;
319
320 /* FTDI FT2232C requirecments */
321 /** FT2232C interface number: 0 or 1 */
322 int interface; /* 0 or 1 */
323 /** FT2232C index number: 1 or 2 */
324 int index; /* 1 or 2 */
325 /* Endpoints */
326 /** FT2232C end points: 1 or 2 */
327 int in_ep;
328 int out_ep; /* 1 or 2 */
329
330 /** Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
331 unsigned char bitbang_mode;
332
333 /** Decoded eeprom structure */
334 struct ftdi_eeprom *eeprom;
335
336 /** String representation of last error */
337 char *error_str;
338
339 /** Defines behavior in case a kernel module is already attached to the device */
340 enum ftdi_module_detach_mode module_detach_mode;
341};
342
343/**
344 List all handled EEPROM values.
345 Append future new values only at the end to provide API/ABI stability*/
346enum ftdi_eeprom_value
347{
348 VENDOR_ID = 0,
349 PRODUCT_ID = 1,
350 SELF_POWERED = 2,
351 REMOTE_WAKEUP = 3,
352 IS_NOT_PNP = 4,
353 SUSPEND_DBUS7 = 5,
354 IN_IS_ISOCHRONOUS = 6,
355 OUT_IS_ISOCHRONOUS = 7,
356 SUSPEND_PULL_DOWNS = 8,
357 USE_SERIAL = 9,
358 USB_VERSION = 10,
359 USE_USB_VERSION = 11,
360 MAX_POWER = 12,
361 CHANNEL_A_TYPE = 13,
362 CHANNEL_B_TYPE = 14,
363 CHANNEL_A_DRIVER = 15,
364 CHANNEL_B_DRIVER = 16,
365 CBUS_FUNCTION_0 = 17,
366 CBUS_FUNCTION_1 = 18,
367 CBUS_FUNCTION_2 = 19,
368 CBUS_FUNCTION_3 = 20,
369 CBUS_FUNCTION_4 = 21,
370 HIGH_CURRENT = 22,
371 HIGH_CURRENT_A = 23,
372 HIGH_CURRENT_B = 24,
373 INVERT = 25,
374 GROUP0_DRIVE = 26,
375 GROUP0_SCHMITT = 27,
376 GROUP0_SLEW = 28,
377 GROUP1_DRIVE = 29,
378 GROUP1_SCHMITT = 30,
379 GROUP1_SLEW = 31,
380 GROUP2_DRIVE = 32,
381 GROUP2_SCHMITT = 33,
382 GROUP2_SLEW = 34,
383 GROUP3_DRIVE = 35,
384 GROUP3_SCHMITT = 36,
385 GROUP3_SLEW = 37,
386 CHIP_SIZE = 38,
387 CHIP_TYPE = 39
388};
389
390/**
391 \brief list of usb devices created by ftdi_usb_find_all()
392*/
393struct ftdi_device_list
394{
395 /** pointer to next entry */
396 struct ftdi_device_list *next;
397 /** pointer to libusb's usb_device */
398 struct libusb_device *dev;
399};
400
401#define USE_SERIAL_NUM 0x08
402enum ftdi_cbus_func {/* FIXME: Recheck value, especially the last */
403 CBUS_TXDEN = 0, CBUS_PWREN = 1, CBUS_RXLED = 2, CBUS_TXLED = 3, CBUS_TXRXLED = 4,
404 CBUS_SLEEP = 5, CBUS_CLK48 = 6, CBUS_CLK24 = 7, CBUS_CLK12 = 8, CBUS_CLK6 = 9,
405 CBUS_IOMODE = 0xa, CBUS_BB_WR = 0xb, CBUS_BB_RD = 0xc, CBUS_BB = 0xd};
406
407/** Invert TXD# */
408#define INVERT_TXD 0x01
409/** Invert RXD# */
410#define INVERT_RXD 0x02
411/** Invert RTS# */
412#define INVERT_RTS 0x04
413/** Invert CTS# */
414#define INVERT_CTS 0x08
415/** Invert DTR# */
416#define INVERT_DTR 0x10
417/** Invert DSR# */
418#define INVERT_DSR 0x20
419/** Invert DCD# */
420#define INVERT_DCD 0x40
421/** Invert RI# */
422#define INVERT_RI 0x80
423
424/** Interface Mode. */
425#define CHANNEL_IS_UART 0x0
426#define CHANNEL_IS_245 0x1
427#define CHANNEL_IS_CPU 0x2
428#define CHANNEL_IS_OPTO 0x4
429
430#define DRIVE_4MA 0
431#define DRIVE_8MA 1
432#define DRIVE_12MA 2
433#define DRIVE_16MA 3
434#define SLOW_SLEW 4
435#define IS_SCHMITT 8
436
437/** Driver Type. */
438#define DRIVER_VCP 0x08
439#define DRIVER_VCPH 0x10 /* FT232H has moved the VCP bit */
440
441#define USE_USB_VERSION_BIT 0x10
442
443#define SUSPEND_DBUS7_BIT 0x80
444
445/** High current drive. */
446#define HIGH_CURRENT_DRIVE 0x10
447#define HIGH_CURRENT_DRIVE_R 0x04
448
449/**
450 \brief Progress Info for streaming read
451*/
452struct size_and_time
453{
454 uint64_t totalBytes;
455 struct timeval time;
456};
457
458typedef struct
459{
460 struct size_and_time first;
461 struct size_and_time prev;
462 struct size_and_time current;
463 double totalTime;
464 double totalRate;
465 double currentRate;
466} FTDIProgressInfo;
467
468typedef int (FTDIStreamCallback)(uint8_t *buffer, int length,
469 FTDIProgressInfo *progress, void *userdata);
470
471
472#ifdef __cplusplus
473extern "C"
474{
475#endif
476
477 int ftdi_init(struct ftdi_context *ftdi);
478 struct ftdi_context *ftdi_new(void);
479 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface);
480
481 void ftdi_deinit(struct ftdi_context *ftdi);
482 void ftdi_free(struct ftdi_context *ftdi);
483 void ftdi_set_usbdev (struct ftdi_context *ftdi, struct libusb_device_handle *usbdev);
484
485 int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist,
486 int vendor, int product);
487 void ftdi_list_free(struct ftdi_device_list **devlist);
488 void ftdi_list_free2(struct ftdi_device_list *devlist);
489 int ftdi_usb_get_strings(struct ftdi_context *ftdi, struct libusb_device *dev,
490 char * manufacturer, int mnf_len,
491 char * description, int desc_len,
492 char * serial, int serial_len);
493
494 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
495 int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product,
496 const char* description, const char* serial);
497 int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product,
498 const char* description, const char* serial, unsigned int index);
499 int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct libusb_device *dev);
500 int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description);
501
502 int ftdi_usb_close(struct ftdi_context *ftdi);
503 int ftdi_usb_reset(struct ftdi_context *ftdi);
504 int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi);
505 int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi);
506 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
507
508 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
509 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
510 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity);
511 int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
512 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
513 enum ftdi_break_type break_type);
514
515 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
516 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
517 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
518
519 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
520 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
521 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
522
523 int ftdi_readstream(struct ftdi_context *ftdi, FTDIStreamCallback *callback,
524 void *userdata, int packetsPerTransfer, int numTransfers);
525 int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
526 void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
527
528 struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size);
529 int ftdi_transfer_data_done(struct ftdi_transfer_control *tc);
530
531 int DEPRECATED(ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask));
532 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
533 int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);
534 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
535
536 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
537 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
538
539 int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status);
540
541 /* flow control */
542 int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl);
543 int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts);
544 int ftdi_setdtr(struct ftdi_context *ftdi, int state);
545 int ftdi_setrts(struct ftdi_context *ftdi, int state);
546
547 int ftdi_set_event_char(struct ftdi_context *ftdi, unsigned char eventch, unsigned char enable);
548 int ftdi_set_error_char(struct ftdi_context *ftdi, unsigned char errorch, unsigned char enable);
549
550 /* init eeprom for the given FTDI type */
551 int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi,
552 char * manufacturer, char *product,
553 char * serial);
554 int ftdi_eeprom_build(struct ftdi_context *ftdi);
555 int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose);
556
557 int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int* value);
558 int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value);
559
560 int ftdi_get_eeprom_buf(struct ftdi_context *ftdi, unsigned char * buf, int size);
561
562 int ftdi_read_eeprom(struct ftdi_context *ftdi);
563 int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid);
564 int ftdi_write_eeprom(struct ftdi_context *ftdi);
565 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
566
567 int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val);
568 int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val);
569
570 char *ftdi_get_error_string(struct ftdi_context *ftdi);
571
572#ifdef __cplusplus
573}
574#endif
575
576#endif /* __libftdi_h__ */
A library to talk to FTDI chips