1 |
#include <unistd.h> |
2 |
#include <fcntl.h> |
3 |
#include <termios.h> |
4 |
#include <strings.h> |
5 |
#include "rdesktop.h" |
6 |
|
7 |
#define FILE_DEVICE_SERIAL_PORT 0x1b |
8 |
|
9 |
#define SERIAL_SET_BAUD_RATE 1 |
10 |
#define SERIAL_SET_QUEUE_SIZE 2 |
11 |
#define SERIAL_SET_LINE_CONTROL 3 |
12 |
#define SERIAL_SET_BREAK_ON 4 |
13 |
#define SERIAL_SET_BREAK_OFF 5 |
14 |
#define SERIAL_IMMEDIATE_CHAR 6 |
15 |
#define SERIAL_SET_TIMEOUTS 7 |
16 |
#define SERIAL_GET_TIMEOUTS 8 |
17 |
#define SERIAL_SET_DTR 9 |
18 |
#define SERIAL_CLR_DTR 10 |
19 |
#define SERIAL_RESET_DEVICE 11 |
20 |
#define SERIAL_SET_RTS 12 |
21 |
#define SERIAL_CLR_RTS 13 |
22 |
#define SERIAL_SET_XOFF 14 |
23 |
#define SERIAL_SET_XON 15 |
24 |
#define SERIAL_GET_WAIT_MASK 16 |
25 |
#define SERIAL_SET_WAIT_MASK 17 |
26 |
#define SERIAL_WAIT_ON_MASK 18 |
27 |
#define SERIAL_PURGE 19 |
28 |
#define SERIAL_GET_BAUD_RATE 20 |
29 |
#define SERIAL_GET_LINE_CONTROL 21 |
30 |
#define SERIAL_GET_CHARS 22 |
31 |
#define SERIAL_SET_CHARS 23 |
32 |
#define SERIAL_GET_HANDFLOW 24 |
33 |
#define SERIAL_SET_HANDFLOW 25 |
34 |
#define SERIAL_GET_MODEMSTATUS 26 |
35 |
#define SERIAL_GET_COMMSTATUS 27 |
36 |
#define SERIAL_XOFF_COUNTER 28 |
37 |
#define SERIAL_GET_PROPERTIES 29 |
38 |
#define SERIAL_GET_DTRRTS 30 |
39 |
#define SERIAL_LSRMST_INSERT 31 |
40 |
#define SERIAL_CONFIG_SIZE 32 |
41 |
#define SERIAL_GET_COMMCONFIG 33 |
42 |
#define SERIAL_SET_COMMCONFIG 34 |
43 |
#define SERIAL_GET_STATS 35 |
44 |
#define SERIAL_CLEAR_STATS 36 |
45 |
#define SERIAL_GET_MODEM_CONTROL 37 |
46 |
#define SERIAL_SET_MODEM_CONTROL 38 |
47 |
#define SERIAL_SET_FIFO_CONTROL 39 |
48 |
|
49 |
#define STOP_BITS_1 0 |
50 |
#define STOP_BITS_2 2 |
51 |
|
52 |
#define NO_PARITY 0 |
53 |
#define ODD_PARITY 1 |
54 |
#define EVEN_PARITY 2 |
55 |
|
56 |
extern RDPDR_DEVICE g_rdpdr_device[]; |
57 |
|
58 |
SERIAL_DEVICE * |
59 |
get_serial_info(HANDLE handle) |
60 |
{ |
61 |
int index; |
62 |
|
63 |
for (index = 0; index < RDPDR_MAX_DEVICES; index++) |
64 |
{ |
65 |
if (handle == g_rdpdr_device[index].handle) |
66 |
return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
67 |
} |
68 |
return NULL; |
69 |
} |
70 |
|
71 |
BOOL |
72 |
get_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd) |
73 |
{ |
74 |
speed_t speed; |
75 |
struct termios *ptermios; |
76 |
|
77 |
ptermios = pser_inf->ptermios; |
78 |
|
79 |
if (tcgetattr(serial_fd, ptermios) == -1) |
80 |
return False; |
81 |
|
82 |
speed = cfgetispeed(ptermios); |
83 |
switch (speed) |
84 |
{ |
85 |
#ifdef B75 |
86 |
case B75: |
87 |
pser_inf->baud_rate = 75; |
88 |
break; |
89 |
#endif |
90 |
#ifdef B110 |
91 |
case B110: |
92 |
pser_inf->baud_rate = 110; |
93 |
break; |
94 |
#endif |
95 |
#ifdef B134 |
96 |
case B134: |
97 |
pser_inf->baud_rate = 134; |
98 |
break; |
99 |
#endif |
100 |
#ifdef B150 |
101 |
case B150: |
102 |
pser_inf->baud_rate = 150; |
103 |
break; |
104 |
#endif |
105 |
#ifdef B300 |
106 |
case B300: |
107 |
pser_inf->baud_rate = 300; |
108 |
break; |
109 |
#endif |
110 |
#ifdef B600 |
111 |
case B600: |
112 |
pser_inf->baud_rate = 600; |
113 |
break; |
114 |
#endif |
115 |
#ifdef B1200 |
116 |
case B1200: |
117 |
pser_inf->baud_rate = 1200; |
118 |
break; |
119 |
#endif |
120 |
#ifdef B1800 |
121 |
case B1800: |
122 |
pser_inf->baud_rate = 1800; |
123 |
break; |
124 |
#endif |
125 |
#ifdef B2400 |
126 |
case B2400: |
127 |
pser_inf->baud_rate = 2400; |
128 |
break; |
129 |
#endif |
130 |
#ifdef B4800 |
131 |
case B4800: |
132 |
pser_inf->baud_rate = 4800; |
133 |
break; |
134 |
#endif |
135 |
#ifdef B9600 |
136 |
case B9600: |
137 |
pser_inf->baud_rate = 9600; |
138 |
break; |
139 |
#endif |
140 |
#ifdef B19200 |
141 |
case B19200: |
142 |
pser_inf->baud_rate = 19200; |
143 |
break; |
144 |
#endif |
145 |
#ifdef B38400 |
146 |
case B38400: |
147 |
pser_inf->baud_rate = 38400; |
148 |
break; |
149 |
#endif |
150 |
#ifdef B57600 |
151 |
case B57600: |
152 |
pser_inf->baud_rate = 57600; |
153 |
break; |
154 |
#endif |
155 |
#ifdef B115200 |
156 |
case B115200: |
157 |
pser_inf->baud_rate = 115200; |
158 |
break; |
159 |
#endif |
160 |
default: |
161 |
pser_inf->baud_rate = 0; |
162 |
break; |
163 |
} |
164 |
|
165 |
speed = cfgetospeed(ptermios); |
166 |
pser_inf->dtr = (speed == B0) ? 0 : 1; |
167 |
|
168 |
pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
169 |
pser_inf->parity = |
170 |
(ptermios-> |
171 |
c_cflag & PARENB) ? ((ptermios-> |
172 |
c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
173 |
switch (ptermios->c_cflag & CSIZE) |
174 |
{ |
175 |
case CS5: |
176 |
pser_inf->word_length = 5; |
177 |
break; |
178 |
case CS6: |
179 |
pser_inf->word_length = 6; |
180 |
break; |
181 |
case CS7: |
182 |
pser_inf->word_length = 7; |
183 |
break; |
184 |
default: |
185 |
pser_inf->word_length = 8; |
186 |
break; |
187 |
} |
188 |
|
189 |
return True; |
190 |
} |
191 |
|
192 |
static void |
193 |
set_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd) |
194 |
{ |
195 |
speed_t speed; |
196 |
|
197 |
struct termios *ptermios; |
198 |
|
199 |
ptermios = pser_inf->ptermios; |
200 |
|
201 |
|
202 |
switch (pser_inf->baud_rate) |
203 |
{ |
204 |
#ifdef B75 |
205 |
case 75: |
206 |
speed = B75; |
207 |
break; |
208 |
#endif |
209 |
#ifdef B110 |
210 |
case 110: |
211 |
speed = B110; |
212 |
break; |
213 |
#endif |
214 |
#ifdef B134 |
215 |
case 134: |
216 |
speed = B134; |
217 |
break; |
218 |
#endif |
219 |
#ifdef B150 |
220 |
case 150: |
221 |
speed = B150; |
222 |
break; |
223 |
#endif |
224 |
#ifdef B300 |
225 |
case 300: |
226 |
speed = B300; |
227 |
break; |
228 |
#endif |
229 |
#ifdef B600 |
230 |
case 600: |
231 |
speed = B600; |
232 |
break; |
233 |
#endif |
234 |
#ifdef B1200 |
235 |
case 1200: |
236 |
speed = B1200; |
237 |
break; |
238 |
#endif |
239 |
#ifdef B1800 |
240 |
case 1800: |
241 |
speed = B1800; |
242 |
break; |
243 |
#endif |
244 |
#ifdef B2400 |
245 |
case 2400: |
246 |
speed = B2400; |
247 |
break; |
248 |
#endif |
249 |
#ifdef B4800 |
250 |
case 4800: |
251 |
speed = B4800; |
252 |
break; |
253 |
#endif |
254 |
#ifdef B9600 |
255 |
case 9600: |
256 |
speed = B9600; |
257 |
break; |
258 |
#endif |
259 |
#ifdef B19200 |
260 |
case 19200: |
261 |
speed = B19200; |
262 |
break; |
263 |
#endif |
264 |
#ifdef B38400 |
265 |
case 38400: |
266 |
speed = B38400; |
267 |
break; |
268 |
#endif |
269 |
#ifdef B57600 |
270 |
case 57600: |
271 |
speed = B57600; |
272 |
break; |
273 |
#endif |
274 |
#ifdef B115200 |
275 |
case 115200: |
276 |
speed = B115200; |
277 |
break; |
278 |
#endif |
279 |
default: |
280 |
speed = B0; |
281 |
break; |
282 |
} |
283 |
|
284 |
/* on systems with separate ispeed and ospeed, we can remember the speed |
285 |
in ispeed while changing DTR with ospeed */ |
286 |
cfsetispeed(pser_inf->ptermios, speed); |
287 |
cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0); |
288 |
|
289 |
ptermios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE); |
290 |
switch (pser_inf->stop_bits) |
291 |
{ |
292 |
case STOP_BITS_2: |
293 |
ptermios->c_cflag |= CSTOPB; |
294 |
break; |
295 |
} |
296 |
switch (pser_inf->parity) |
297 |
{ |
298 |
case EVEN_PARITY: |
299 |
ptermios->c_cflag |= PARENB; |
300 |
break; |
301 |
case ODD_PARITY: |
302 |
ptermios->c_cflag |= PARENB | PARODD; |
303 |
break; |
304 |
} |
305 |
switch (pser_inf->word_length) |
306 |
{ |
307 |
case 5: |
308 |
ptermios->c_cflag |= CS5; |
309 |
break; |
310 |
case 6: |
311 |
ptermios->c_cflag |= CS6; |
312 |
break; |
313 |
case 7: |
314 |
ptermios->c_cflag |= CS7; |
315 |
break; |
316 |
default: |
317 |
ptermios->c_cflag |= CS8; |
318 |
break; |
319 |
} |
320 |
|
321 |
tcsetattr(serial_fd, TCSANOW, ptermios); |
322 |
} |
323 |
|
324 |
/* Enumeration of devices from rdesktop.c */ |
325 |
/* returns numer of units found and initialized. */ |
326 |
/* optarg looks like ':com1=/dev/ttyS0' */ |
327 |
/* when it arrives to this function. */ |
328 |
/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */ |
329 |
int |
330 |
serial_enum_devices(int *id, char *optarg) |
331 |
{ |
332 |
SERIAL_DEVICE *pser_inf; |
333 |
|
334 |
char *pos = optarg; |
335 |
char *pos2; |
336 |
int count = 0; |
337 |
|
338 |
// skip the first colon |
339 |
optarg++; |
340 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
341 |
{ |
342 |
// Init data structures for device |
343 |
pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE)); |
344 |
pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios)); |
345 |
pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios)); |
346 |
|
347 |
pos2 = next_arg(optarg, '='); |
348 |
strcpy(g_rdpdr_device[*id].name, optarg); |
349 |
|
350 |
toupper_str(g_rdpdr_device[*id].name); |
351 |
|
352 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
353 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
354 |
printf("SERIAL %s to %s\n", g_rdpdr_device[*id].name, |
355 |
g_rdpdr_device[*id].local_path); |
356 |
// set device type |
357 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL; |
358 |
g_rdpdr_device[*id].pdevice_data = (void *) pser_inf; |
359 |
count++; |
360 |
(*id)++; |
361 |
|
362 |
optarg = pos; |
363 |
} |
364 |
return count; |
365 |
} |
366 |
|
367 |
NTSTATUS |
368 |
serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition, |
369 |
uint32 flags_and_attributes, char *filename, HANDLE * handle) |
370 |
{ |
371 |
HANDLE serial_fd; |
372 |
SERIAL_DEVICE *pser_inf; |
373 |
struct termios *ptermios; |
374 |
|
375 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data; |
376 |
ptermios = pser_inf->ptermios; |
377 |
serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR | O_NOCTTY); |
378 |
|
379 |
if (serial_fd == -1) |
380 |
{ |
381 |
perror("open"); |
382 |
return STATUS_ACCESS_DENIED; |
383 |
} |
384 |
|
385 |
if (!get_termios(pser_inf, serial_fd)) |
386 |
return STATUS_ACCESS_DENIED; |
387 |
|
388 |
// Store handle for later use |
389 |
g_rdpdr_device[device_id].handle = serial_fd; |
390 |
|
391 |
/* some sane information */ |
392 |
printf("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u\n", g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path, pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr); |
393 |
printf("INFO: use stty to change settings\n"); |
394 |
|
395 |
/* ptermios->c_cflag = B115200 | CRTSCTS | CS8 | CLOCAL | CREAD; |
396 |
ptermios->c_cflag |= CREAD; |
397 |
ptermios->c_lflag |= ICANON; |
398 |
ptermios->c_iflag = IGNPAR | ICRNL; |
399 |
|
400 |
tcsetattr(serial_fd, TCSANOW, ptermios); |
401 |
*/ |
402 |
|
403 |
*handle = serial_fd; |
404 |
|
405 |
/* all read and writes should be non blocking */ |
406 |
if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1) |
407 |
perror("fcntl"); |
408 |
|
409 |
return STATUS_SUCCESS; |
410 |
} |
411 |
|
412 |
static NTSTATUS |
413 |
serial_close(HANDLE handle) |
414 |
{ |
415 |
g_rdpdr_device[get_device_index(handle)].handle = 0; |
416 |
close(handle); |
417 |
return STATUS_SUCCESS; |
418 |
} |
419 |
|
420 |
NTSTATUS |
421 |
serial_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
422 |
{ |
423 |
long timeout; |
424 |
SERIAL_DEVICE *pser_inf; |
425 |
struct termios *ptermios; |
426 |
|
427 |
timeout = 90; |
428 |
pser_inf = get_serial_info(handle); |
429 |
ptermios = pser_inf->ptermios; |
430 |
|
431 |
// Set timeouts kind of like the windows serial timeout parameters. Multiply timeout |
432 |
// with requested read size |
433 |
if (pser_inf->read_total_timeout_multiplier | pser_inf->read_total_timeout_constant) |
434 |
{ |
435 |
timeout = |
436 |
(pser_inf->read_total_timeout_multiplier * length + |
437 |
pser_inf->read_total_timeout_constant + 99) / 100; |
438 |
} |
439 |
else if (pser_inf->read_interval_timeout) |
440 |
{ |
441 |
timeout = (pser_inf->read_interval_timeout * length + 99) / 100; |
442 |
} |
443 |
|
444 |
// If a timeout is set, do a blocking read, which times out after some time. |
445 |
// It will make rdesktop less responsive, but it will improve serial performance, by not |
446 |
// reading one character at a time. |
447 |
if (timeout == 0) |
448 |
{ |
449 |
ptermios->c_cc[VTIME] = 0; |
450 |
ptermios->c_cc[VMIN] = 0; |
451 |
} |
452 |
else |
453 |
{ |
454 |
ptermios->c_cc[VTIME] = timeout; |
455 |
ptermios->c_cc[VMIN] = 1; |
456 |
} |
457 |
tcsetattr(handle, TCSANOW, ptermios); |
458 |
|
459 |
|
460 |
*result = read(handle, data, length); |
461 |
|
462 |
return STATUS_SUCCESS; |
463 |
} |
464 |
|
465 |
NTSTATUS |
466 |
serial_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
467 |
{ |
468 |
*result = write(handle, data, length); |
469 |
return STATUS_SUCCESS; |
470 |
} |
471 |
|
472 |
static NTSTATUS |
473 |
serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out) |
474 |
{ |
475 |
uint32 result; |
476 |
uint8 immediate; |
477 |
SERIAL_DEVICE *pser_inf; |
478 |
struct termios *ptermios; |
479 |
|
480 |
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
481 |
return STATUS_INVALID_PARAMETER; |
482 |
|
483 |
pser_inf = get_serial_info(handle); |
484 |
ptermios = pser_inf->ptermios; |
485 |
|
486 |
/* extract operation */ |
487 |
request >>= 2; |
488 |
request &= 0xfff; |
489 |
|
490 |
printf("SERIAL IOCTL %d\n", request); |
491 |
|
492 |
switch (request) |
493 |
{ |
494 |
case SERIAL_SET_BAUD_RATE: |
495 |
in_uint32_le(in, pser_inf->baud_rate); |
496 |
set_termios(pser_inf, handle); |
497 |
break; |
498 |
case SERIAL_GET_BAUD_RATE: |
499 |
out_uint32_le(out, pser_inf->baud_rate); |
500 |
break; |
501 |
case SERIAL_SET_QUEUE_SIZE: |
502 |
in_uint32_le(in, pser_inf->queue_in_size); |
503 |
in_uint32_le(in, pser_inf->queue_out_size); |
504 |
break; |
505 |
case SERIAL_SET_LINE_CONTROL: |
506 |
in_uint8(in, pser_inf->stop_bits); |
507 |
in_uint8(in, pser_inf->parity); |
508 |
in_uint8(in, pser_inf->word_length); |
509 |
set_termios(pser_inf, handle); |
510 |
break; |
511 |
case SERIAL_GET_LINE_CONTROL: |
512 |
out_uint8(out, pser_inf->stop_bits); |
513 |
out_uint8(out, pser_inf->parity); |
514 |
out_uint8(out, pser_inf->word_length); |
515 |
break; |
516 |
case SERIAL_IMMEDIATE_CHAR: |
517 |
in_uint8(in, immediate); |
518 |
serial_write(handle, &immediate, 1, 0, &result); |
519 |
break; |
520 |
case SERIAL_CONFIG_SIZE: |
521 |
out_uint32_le(out, 0); |
522 |
break; |
523 |
case SERIAL_GET_CHARS: |
524 |
out_uint8s(out, 6); |
525 |
break; |
526 |
case SERIAL_SET_CHARS: |
527 |
in_uint8s(in, 6); |
528 |
break; |
529 |
case SERIAL_GET_HANDFLOW: |
530 |
out_uint32_le(out, 0); |
531 |
out_uint32_le(out, 3); /* Xon/Xoff */ |
532 |
out_uint32_le(out, 0); |
533 |
out_uint32_le(out, 0); |
534 |
break; |
535 |
case SERIAL_SET_HANDFLOW: |
536 |
in_uint8s(in, 16); |
537 |
break; |
538 |
case SERIAL_SET_TIMEOUTS: |
539 |
in_uint8s(in, 20); |
540 |
break; |
541 |
case SERIAL_GET_TIMEOUTS: |
542 |
out_uint8s(out, 20); |
543 |
break; |
544 |
case SERIAL_GET_WAIT_MASK: |
545 |
out_uint32(out, pser_inf->wait_mask); |
546 |
break; |
547 |
case SERIAL_SET_WAIT_MASK: |
548 |
in_uint32(in, pser_inf->wait_mask); |
549 |
break; |
550 |
case SERIAL_SET_DTR: |
551 |
pser_inf->dtr = 1; |
552 |
set_termios(pser_inf, handle); |
553 |
break; |
554 |
case SERIAL_CLR_DTR: |
555 |
pser_inf->dtr = 0; |
556 |
set_termios(pser_inf, handle); |
557 |
break; |
558 |
#if 0 |
559 |
case SERIAL_WAIT_ON_MASK: |
560 |
/* XXX implement me */ |
561 |
break; |
562 |
case SERIAL_SET_BREAK_ON: |
563 |
tcsendbreak(serial_fd, 0); |
564 |
break; |
565 |
case SERIAL_PURGE: |
566 |
|
567 |
printf("SERIAL_PURGE\n"); |
568 |
in_uint32(in, purge_mask); |
569 |
if (purge_mask & 0x04) |
570 |
flush_mask |= TCOFLUSH; |
571 |
if (purge_mask & 0x08) |
572 |
flush_mask |= TCIFLUSH; |
573 |
if (flush_mask != 0) |
574 |
tcflush(handle, flush_mask); |
575 |
if (purge_mask & 0x01) |
576 |
rdpdr_abort_io(handle, 4, STATUS_CANCELLED); |
577 |
if (purge_mask & 0x02) |
578 |
rdpdr_abort_io(handle, 3, STATUS_CANCELLED); |
579 |
break; |
580 |
|
581 |
case SERIAL_RESET_DEVICE: |
582 |
case SERIAL_SET_BREAK_OFF: |
583 |
case SERIAL_SET_RTS: |
584 |
case SERIAL_CLR_RTS: |
585 |
case SERIAL_SET_XOFF: |
586 |
case SERIAL_SET_XON: |
587 |
/* ignore */ |
588 |
break; |
589 |
#endif |
590 |
|
591 |
default: |
592 |
unimpl("SERIAL IOCTL %d\n", request); |
593 |
return STATUS_INVALID_PARAMETER; |
594 |
} |
595 |
|
596 |
return STATUS_SUCCESS; |
597 |
} |
598 |
|
599 |
/* Read timeout for a given file descripter (device) when adding fd's to select() */ |
600 |
BOOL |
601 |
serial_get_timeout(HANDLE handle, uint32 length, uint32 * timeout, uint32 * itv_timeout) |
602 |
{ |
603 |
int index; |
604 |
SERIAL_DEVICE *pser_inf; |
605 |
|
606 |
index = get_device_index(handle); |
607 |
|
608 |
if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL) |
609 |
{ |
610 |
return False; |
611 |
} |
612 |
|
613 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
614 |
|
615 |
*timeout = |
616 |
pser_inf->read_total_timeout_multiplier * length + |
617 |
pser_inf->read_total_timeout_constant; |
618 |
*itv_timeout = pser_inf->read_interval_timeout; |
619 |
return True; |
620 |
} |
621 |
|
622 |
DEVICE_FNS serial_fns = { |
623 |
serial_create, |
624 |
serial_close, |
625 |
serial_read, |
626 |
serial_write, |
627 |
serial_device_control |
628 |
}; |