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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: usb-unix.c 7810 2008-07-29 01:11:15Z mike $" |
ef416fc2 | 3 | * |
c8fef167 | 4 | * USB port backend for CUPS. |
ef416fc2 | 5 | * |
6 | * This file is included from "usb.c" when compiled on UNIX/Linux. | |
7 | * | |
f3c17241 | 8 | * Copyright 2007-2012 by Apple Inc. |
f7deaa1a | 9 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 10 | * |
11 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 12 | * property of Apple Inc. and are protected by Federal copyright |
13 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
ef416fc2 | 14 | * "LICENSE" which should have been included with this file. If this |
bc44d920 | 15 | * file is missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 16 | * |
17 | * This file is subject to the Apple OS-Developed Software exception. | |
18 | * | |
19 | * Contents: | |
20 | * | |
ed486911 | 21 | * print_device() - Print a file to a USB device. |
ef416fc2 | 22 | * list_devices() - List all USB devices. |
ed486911 | 23 | * open_device() - Open a USB device... |
f7deaa1a | 24 | * side_cb() - Handle side-channel requests... |
ef416fc2 | 25 | */ |
26 | ||
27 | /* | |
28 | * Include necessary headers. | |
29 | */ | |
30 | ||
ef416fc2 | 31 | #include <sys/select.h> |
32 | ||
33 | ||
34 | /* | |
35 | * Local functions... | |
36 | */ | |
37 | ||
f7deaa1a | 38 | static int open_device(const char *uri, int *use_bc); |
18ecb428 | 39 | static int side_cb(int print_fd, int device_fd, int snmp_fd, |
568fa3fa | 40 | http_addr_t *addr, int use_bc); |
ef416fc2 | 41 | |
42 | ||
43 | /* | |
44 | * 'print_device()' - Print a file to a USB device. | |
45 | */ | |
46 | ||
47 | int /* O - Exit status */ | |
48 | print_device(const char *uri, /* I - Device URI */ | |
49 | const char *hostname, /* I - Hostname/manufacturer */ | |
50 | const char *resource, /* I - Resource/modelname */ | |
db1f069b | 51 | char *options, /* I - Device options/serial number */ |
ed486911 | 52 | int print_fd, /* I - File descriptor to print */ |
e53920b9 | 53 | int copies, /* I - Copies to print */ |
54 | int argc, /* I - Number of command-line arguments (6 or 7) */ | |
55 | char *argv[]) /* I - Command-line arguments */ | |
ef416fc2 | 56 | { |
ed486911 | 57 | int use_bc; /* Use backchannel path? */ |
58 | int device_fd; /* USB device */ | |
321d8d57 | 59 | ssize_t tbytes; /* Total number of bytes written */ |
ef416fc2 | 60 | struct termios opts; /* Parallel port options */ |
ed486911 | 61 | |
ef416fc2 | 62 | |
e53920b9 | 63 | (void)argc; |
64 | (void)argv; | |
ef416fc2 | 65 | |
66 | /* | |
67 | * Open the USB port device... | |
68 | */ | |
69 | ||
757d2cad | 70 | fputs("STATE: +connecting-to-device\n", stderr); |
71 | ||
ef416fc2 | 72 | do |
73 | { | |
b94498cf | 74 | #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) |
323c5de1 | 75 | /* |
b94498cf | 76 | * *BSD's ulpt driver currently does not support the |
77 | * back-channel, incorrectly returns data ready on a select(), | |
78 | * and locks up on read()... | |
323c5de1 | 79 | */ |
80 | ||
81 | use_bc = 0; | |
82 | ||
ed6e7faf MS |
83 | #elif defined(__sun) |
84 | /* | |
85 | * CUPS STR #3028: Solaris' usbprn driver apparently does not support | |
86 | * select() or poll(), so we can't support backchannel... | |
87 | */ | |
88 | ||
89 | use_bc = 0; | |
90 | ||
323c5de1 | 91 | #else |
8ca02f3c | 92 | /* |
f7deaa1a | 93 | * Disable backchannel data when printing to Brother, Canon, or |
94 | * Minolta USB printers - apparently these printers will return | |
95 | * the IEEE-1284 device ID over and over and over when they get | |
96 | * a read request... | |
8ca02f3c | 97 | */ |
98 | ||
88f9aafc MS |
99 | use_bc = _cups_strcasecmp(hostname, "Brother") && |
100 | _cups_strcasecmp(hostname, "Canon") && | |
101 | _cups_strncasecmp(hostname, "Konica", 6) && | |
102 | _cups_strncasecmp(hostname, "Minolta", 7); | |
b94498cf | 103 | #endif /* __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __DragonFly__ */ |
8ca02f3c | 104 | |
105 | if ((device_fd = open_device(uri, &use_bc)) == -1) | |
ef416fc2 | 106 | { |
107 | if (getenv("CLASS") != NULL) | |
108 | { | |
109 | /* | |
110 | * If the CLASS environment variable is set, the job was submitted | |
111 | * to a class and not to a specific queue. In this case, we want | |
112 | * to abort immediately so that the job can be requeued on the next | |
113 | * available printer in the class. | |
114 | */ | |
115 | ||
0837b7e8 MS |
116 | _cupsLangPrintFilter(stderr, "INFO", |
117 | _("Unable to contact printer, queuing on next " | |
118 | "printer in class.")); | |
ef416fc2 | 119 | |
120 | /* | |
121 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
122 | */ | |
123 | ||
124 | sleep(5); | |
125 | ||
126 | return (CUPS_BACKEND_FAILED); | |
127 | } | |
128 | ||
129 | if (errno == EBUSY) | |
130 | { | |
f3c17241 | 131 | _cupsLangPrintFilter(stderr, "INFO", _("The printer is in use.")); |
c0e1af83 | 132 | sleep(10); |
ef416fc2 | 133 | } |
ed486911 | 134 | else if (errno == ENXIO || errno == EIO || errno == ENOENT || |
135 | errno == ENODEV) | |
ef416fc2 | 136 | { |
ef416fc2 | 137 | sleep(30); |
138 | } | |
139 | else | |
140 | { | |
c779abb0 | 141 | _cupsLangPrintError("ERROR", _("Unable to open device file")); |
ef416fc2 | 142 | return (CUPS_BACKEND_FAILED); |
143 | } | |
144 | } | |
145 | } | |
ed486911 | 146 | while (device_fd < 0); |
ef416fc2 | 147 | |
757d2cad | 148 | fputs("STATE: -connecting-to-device\n", stderr); |
149 | ||
ef416fc2 | 150 | /* |
151 | * Set any options provided... | |
152 | */ | |
153 | ||
ed486911 | 154 | tcgetattr(device_fd, &opts); |
ef416fc2 | 155 | |
156 | opts.c_lflag &= ~(ICANON | ECHO | ISIG); /* Raw mode */ | |
157 | ||
158 | /**** No options supported yet ****/ | |
159 | ||
ed486911 | 160 | tcsetattr(device_fd, TCSANOW, &opts); |
ef416fc2 | 161 | |
ef416fc2 | 162 | /* |
163 | * Finally, send the print file... | |
164 | */ | |
165 | ||
ed486911 | 166 | tbytes = 0; |
ef416fc2 | 167 | |
ed486911 | 168 | while (copies > 0 && tbytes >= 0) |
ef416fc2 | 169 | { |
170 | copies --; | |
171 | ||
ed486911 | 172 | if (print_fd != 0) |
ef416fc2 | 173 | { |
174 | fputs("PAGE: 1 1\n", stderr); | |
ed486911 | 175 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 176 | } |
177 | ||
ed6e7faf MS |
178 | #ifdef __sun |
179 | /* | |
180 | * CUPS STR #3028: Solaris' usbprn driver apparently does not support | |
181 | * select() or poll(), so we can't support the sidechannel either... | |
182 | */ | |
183 | ||
ef55b745 | 184 | tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, NULL); |
ed6e7faf MS |
185 | |
186 | #else | |
ef55b745 | 187 | tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, side_cb); |
ed6e7faf | 188 | #endif /* __sun */ |
ef416fc2 | 189 | |
ed486911 | 190 | if (print_fd != 0 && tbytes >= 0) |
0837b7e8 | 191 | _cupsLangPrintFilter(stderr, "INFO", _("Print file sent.")); |
ef416fc2 | 192 | } |
193 | ||
194 | /* | |
195 | * Close the USB port and return... | |
196 | */ | |
197 | ||
ed486911 | 198 | close(device_fd); |
ef416fc2 | 199 | |
c8fef167 | 200 | return (CUPS_BACKEND_OK); |
ef416fc2 | 201 | } |
202 | ||
203 | ||
204 | /* | |
205 | * 'list_devices()' - List all USB devices. | |
206 | */ | |
207 | ||
208 | void | |
209 | list_devices(void) | |
210 | { | |
211 | #ifdef __linux | |
2abf387c | 212 | int i; /* Looping var */ |
213 | int fd; /* File descriptor */ | |
214 | char device[255], /* Device filename */ | |
215 | device_id[1024], /* Device ID string */ | |
216 | device_uri[1024], /* Device URI string */ | |
217 | make_model[1024]; /* Make and model */ | |
ef416fc2 | 218 | |
749b1e90 | 219 | |
ef416fc2 | 220 | /* |
2abf387c | 221 | * Try to open each USB device... |
ef416fc2 | 222 | */ |
223 | ||
224 | for (i = 0; i < 16; i ++) | |
225 | { | |
2abf387c | 226 | /* |
227 | * Linux has a long history of changing the standard filenames used | |
228 | * for USB printer devices. We get the honor of trying them all... | |
229 | */ | |
ef416fc2 | 230 | |
2abf387c | 231 | sprintf(device, "/dev/usblp%d", i); |
232 | ||
233 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
ef416fc2 | 234 | { |
2abf387c | 235 | if (errno != ENOENT) |
236 | continue; | |
ef416fc2 | 237 | |
2abf387c | 238 | sprintf(device, "/dev/usb/lp%d", i); |
239 | ||
240 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
241 | { | |
242 | if (errno != ENOENT) | |
243 | continue; | |
244 | ||
245 | sprintf(device, "/dev/usb/usblp%d", i); | |
246 | ||
247 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
248 | continue; | |
249 | } | |
ef416fc2 | 250 | } |
2abf387c | 251 | |
252 | if (!backendGetDeviceID(fd, device_id, sizeof(device_id), | |
253 | make_model, sizeof(make_model), | |
254 | "usb", device_uri, sizeof(device_uri))) | |
749b1e90 MS |
255 | cupsBackendReport("direct", device_uri, make_model, make_model, |
256 | device_id, NULL); | |
2abf387c | 257 | |
258 | close(fd); | |
ef416fc2 | 259 | } |
ef416fc2 | 260 | #elif defined(__sun) && defined(ECPPIOC_GETDEVID) |
261 | int i; /* Looping var */ | |
262 | int fd; /* File descriptor */ | |
263 | char device[255], /* Device filename */ | |
264 | device_id[1024], /* Device ID string */ | |
265 | device_uri[1024], /* Device URI string */ | |
266 | make_model[1024]; /* Make and model */ | |
ef416fc2 | 267 | |
268 | ||
269 | /* | |
270 | * Open each USB device... | |
271 | */ | |
272 | ||
273 | for (i = 0; i < 8; i ++) | |
274 | { | |
275 | sprintf(device, "/dev/usb/printer%d", i); | |
276 | ||
8ca02f3c | 277 | if ((fd = open(device, O_WRONLY | O_EXCL)) >= 0) |
ef416fc2 | 278 | { |
ed486911 | 279 | if (!backendGetDeviceID(fd, device_id, sizeof(device_id), |
280 | make_model, sizeof(make_model), | |
281 | "usb", device_uri, sizeof(device_uri))) | |
749b1e90 MS |
282 | cupsBackendReport("direct", device_uri, make_model, make_model, |
283 | device_id, NULL); | |
ef416fc2 | 284 | |
285 | close(fd); | |
286 | } | |
287 | } | |
288 | #elif defined(__hpux) | |
289 | #elif defined(__osf) | |
2e4ff8af | 290 | #elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) |
ef416fc2 | 291 | int i; /* Looping var */ |
292 | char device[255]; /* Device filename */ | |
293 | ||
294 | ||
295 | for (i = 0; i < 8; i ++) | |
296 | { | |
297 | sprintf(device, "/dev/ulpt%d", i); | |
298 | if (!access(device, 0)) | |
299 | printf("direct usb:%s \"Unknown\" \"USB Printer #%d\"\n", device, i + 1); | |
300 | ||
301 | sprintf(device, "/dev/unlpt%d", i); | |
302 | if (!access(device, 0)) | |
303 | printf("direct usb:%s \"Unknown\" \"USB Printer #%d (no reset)\"\n", device, i + 1); | |
304 | } | |
305 | #endif | |
306 | } | |
307 | ||
308 | ||
309 | /* | |
310 | * 'open_device()' - Open a USB device... | |
311 | */ | |
312 | ||
f7deaa1a | 313 | static int /* O - File descriptor or -1 on error */ |
8ca02f3c | 314 | open_device(const char *uri, /* I - Device URI */ |
315 | int *use_bc) /* O - Set to 0 for unidirectional */ | |
ef416fc2 | 316 | { |
8ca02f3c | 317 | int fd; /* File descriptor */ |
318 | ||
319 | ||
ef416fc2 | 320 | /* |
321 | * The generic implementation just treats the URI as a device filename... | |
322 | * Specific operating systems may also support using the device serial | |
323 | * number and/or make/model. | |
324 | */ | |
325 | ||
326 | if (!strncmp(uri, "usb:/dev/", 9)) | |
327 | #ifdef __linux | |
ed486911 | 328 | { |
329 | /* | |
330 | * Do not allow direct devices anymore... | |
331 | */ | |
332 | ||
333 | errno = ENODEV; | |
334 | return (-1); | |
335 | } | |
ef416fc2 | 336 | else if (!strncmp(uri, "usb://", 6)) |
337 | { | |
338 | /* | |
339 | * For Linux, try looking up the device serial number or model... | |
340 | */ | |
341 | ||
342 | int i; /* Looping var */ | |
343 | int busy; /* Are any ports busy? */ | |
2abf387c | 344 | char device[255], /* Device filename */ |
ef416fc2 | 345 | device_id[1024], /* Device ID string */ |
346 | make_model[1024], /* Make and model */ | |
347 | device_uri[1024]; /* Device URI string */ | |
348 | ||
349 | ||
350 | /* | |
2abf387c | 351 | * Find the correct USB device... |
ef416fc2 | 352 | */ |
353 | ||
0a682745 | 354 | for (;;) |
ef416fc2 | 355 | { |
356 | for (busy = 0, i = 0; i < 16; i ++) | |
357 | { | |
2abf387c | 358 | /* |
359 | * Linux has a long history of changing the standard filenames used | |
360 | * for USB printer devices. We get the honor of trying them all... | |
361 | */ | |
362 | ||
363 | sprintf(device, "/dev/usblp%d", i); | |
364 | ||
365 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT) | |
366 | { | |
367 | sprintf(device, "/dev/usb/lp%d", i); | |
368 | ||
369 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT) | |
370 | { | |
371 | sprintf(device, "/dev/usb/usblp%d", i); | |
372 | ||
373 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT) | |
374 | continue; | |
375 | } | |
376 | } | |
ef416fc2 | 377 | |
2abf387c | 378 | if (fd >= 0) |
ef416fc2 | 379 | { |
ed486911 | 380 | backendGetDeviceID(fd, device_id, sizeof(device_id), |
381 | make_model, sizeof(make_model), | |
382 | "usb", device_uri, sizeof(device_uri)); | |
ef416fc2 | 383 | } |
384 | else | |
385 | { | |
386 | /* | |
387 | * If the open failed because it was busy, flag it so we retry | |
388 | * as needed... | |
389 | */ | |
390 | ||
391 | if (errno == EBUSY) | |
392 | busy = 1; | |
393 | ||
394 | device_uri[0] = '\0'; | |
395 | } | |
396 | ||
397 | if (!strcmp(uri, device_uri)) | |
398 | { | |
399 | /* | |
400 | * Yes, return this file descriptor... | |
401 | */ | |
402 | ||
c0e1af83 | 403 | fprintf(stderr, "DEBUG: Printer using device file \"%s\"...\n", |
404 | device); | |
ef416fc2 | 405 | |
406 | return (fd); | |
407 | } | |
408 | ||
409 | /* | |
410 | * This wasn't the one... | |
411 | */ | |
412 | ||
413 | if (fd >= 0) | |
414 | close(fd); | |
415 | } | |
416 | ||
417 | /* | |
418 | * If we get here and at least one of the printer ports showed up | |
419 | * as "busy", then sleep for a bit and retry... | |
420 | */ | |
421 | ||
422 | if (busy) | |
f3c17241 | 423 | _cupsLangPrintFilter(stderr, "INFO", _("The printer is in use.")); |
839a51c8 MS |
424 | |
425 | sleep(5); | |
ef416fc2 | 426 | } |
ef416fc2 | 427 | } |
428 | #elif defined(__sun) && defined(ECPPIOC_GETDEVID) | |
ed486911 | 429 | { |
430 | /* | |
431 | * Do not allow direct devices anymore... | |
432 | */ | |
433 | ||
434 | errno = ENODEV; | |
435 | return (-1); | |
436 | } | |
ef416fc2 | 437 | else if (!strncmp(uri, "usb://", 6)) |
438 | { | |
439 | /* | |
440 | * For Solaris, try looking up the device serial number or model... | |
441 | */ | |
442 | ||
443 | int i; /* Looping var */ | |
444 | int busy; /* Are any ports busy? */ | |
ef416fc2 | 445 | char device[255], /* Device filename */ |
446 | device_id[1024], /* Device ID string */ | |
447 | make_model[1024], /* Make and model */ | |
448 | device_uri[1024]; /* Device URI string */ | |
ef416fc2 | 449 | |
450 | ||
451 | /* | |
452 | * Find the correct USB device... | |
453 | */ | |
454 | ||
455 | do | |
456 | { | |
457 | for (i = 0, busy = 0; i < 8; i ++) | |
458 | { | |
459 | sprintf(device, "/dev/usb/printer%d", i); | |
460 | ||
8ca02f3c | 461 | if ((fd = open(device, O_WRONLY | O_EXCL)) >= 0) |
ed486911 | 462 | backendGetDeviceID(fd, device_id, sizeof(device_id), |
463 | make_model, sizeof(make_model), | |
464 | "usb", device_uri, sizeof(device_uri)); | |
ef416fc2 | 465 | else |
466 | { | |
467 | /* | |
468 | * If the open failed because it was busy, flag it so we retry | |
469 | * as needed... | |
470 | */ | |
471 | ||
472 | if (errno == EBUSY) | |
473 | busy = 1; | |
474 | ||
475 | device_uri[0] = '\0'; | |
476 | } | |
477 | ||
478 | if (!strcmp(uri, device_uri)) | |
8ca02f3c | 479 | { |
480 | /* | |
481 | * Yes, return this file descriptor... | |
482 | */ | |
483 | ||
484 | fputs("DEBUG: Setting use_bc to 0!\n", stderr); | |
485 | ||
486 | *use_bc = 0; | |
487 | ||
488 | return (fd); | |
489 | } | |
ef416fc2 | 490 | |
491 | /* | |
492 | * This wasn't the one... | |
493 | */ | |
494 | ||
495 | if (fd >= 0) | |
496 | close(fd); | |
497 | } | |
498 | ||
499 | /* | |
500 | * If we get here and at least one of the printer ports showed up | |
501 | * as "busy", then sleep for a bit and retry... | |
502 | */ | |
503 | ||
504 | if (busy) | |
505 | { | |
f3c17241 | 506 | _cupsLangPrintFilter(stderr, "INFO", _("The printer is in use.")); |
ef416fc2 | 507 | sleep(5); |
508 | } | |
509 | } | |
510 | while (busy); | |
511 | ||
512 | /* | |
513 | * Couldn't find the printer, return "no such device or address"... | |
514 | */ | |
515 | ||
516 | errno = ENODEV; | |
517 | ||
518 | return (-1); | |
519 | } | |
520 | #else | |
8ca02f3c | 521 | { |
91c84a35 | 522 | if (*use_bc) |
323c5de1 | 523 | fd = open(uri + 4, O_RDWR | O_EXCL); |
524 | else | |
525 | fd = -1; | |
526 | ||
527 | if (fd < 0) | |
8ca02f3c | 528 | { |
529 | fd = open(uri + 4, O_WRONLY | O_EXCL); | |
530 | *use_bc = 0; | |
531 | } | |
532 | ||
533 | return (fd); | |
534 | } | |
ef416fc2 | 535 | #endif /* __linux */ |
536 | else | |
537 | { | |
538 | errno = ENODEV; | |
539 | return (-1); | |
540 | } | |
541 | } | |
542 | ||
543 | ||
544 | /* | |
f7deaa1a | 545 | * 'side_cb()' - Handle side-channel requests... |
546 | */ | |
547 | ||
18ecb428 | 548 | static int /* O - 0 on success, -1 on error */ |
568fa3fa MS |
549 | side_cb(int print_fd, /* I - Print file */ |
550 | int device_fd, /* I - Device file */ | |
551 | int snmp_fd, /* I - SNMP socket (unused) */ | |
552 | http_addr_t *addr, /* I - Device address (unused) */ | |
553 | int use_bc) /* I - Using back-channel? */ | |
f7deaa1a | 554 | { |
555 | cups_sc_command_t command; /* Request command */ | |
556 | cups_sc_status_t status; /* Request/response status */ | |
557 | char data[2048]; /* Request/response data */ | |
558 | int datalen; /* Request/response data size */ | |
559 | ||
560 | ||
568fa3fa MS |
561 | (void)snmp_fd; |
562 | (void)addr; | |
563 | ||
f7deaa1a | 564 | datalen = sizeof(data); |
565 | ||
566 | if (cupsSideChannelRead(&command, &status, data, &datalen, 1.0)) | |
18ecb428 | 567 | return (-1); |
f7deaa1a | 568 | |
569 | switch (command) | |
570 | { | |
571 | case CUPS_SC_CMD_DRAIN_OUTPUT : | |
09a101d6 | 572 | if (backendDrainOutput(print_fd, device_fd)) |
573 | status = CUPS_SC_STATUS_IO_ERROR; | |
574 | else if (tcdrain(device_fd)) | |
f7deaa1a | 575 | status = CUPS_SC_STATUS_IO_ERROR; |
576 | else | |
577 | status = CUPS_SC_STATUS_OK; | |
578 | ||
579 | datalen = 0; | |
580 | break; | |
581 | ||
582 | case CUPS_SC_CMD_GET_BIDI : | |
8b450588 | 583 | status = CUPS_SC_STATUS_OK; |
f7deaa1a | 584 | data[0] = use_bc; |
585 | datalen = 1; | |
586 | break; | |
587 | ||
588 | case CUPS_SC_CMD_GET_DEVICE_ID : | |
589 | memset(data, 0, sizeof(data)); | |
590 | ||
591 | if (backendGetDeviceID(device_fd, data, sizeof(data) - 1, | |
592 | NULL, 0, NULL, NULL, 0)) | |
593 | { | |
594 | status = CUPS_SC_STATUS_NOT_IMPLEMENTED; | |
595 | datalen = 0; | |
596 | } | |
597 | else | |
598 | { | |
599 | status = CUPS_SC_STATUS_OK; | |
600 | datalen = strlen(data); | |
601 | } | |
602 | break; | |
603 | ||
604 | default : | |
605 | status = CUPS_SC_STATUS_NOT_IMPLEMENTED; | |
606 | datalen = 0; | |
607 | break; | |
608 | } | |
609 | ||
18ecb428 | 610 | return (cupsSideChannelWrite(command, status, data, datalen, 1.0)); |
f7deaa1a | 611 | } |
612 | ||
613 | ||
614 | /* | |
b19ccc9e | 615 | * End of "$Id: usb-unix.c 7810 2008-07-29 01:11:15Z mike $". |
ef416fc2 | 616 | */ |