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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* Sysctl interface for parport devices. |
3 | * | |
bdca3f20 | 4 | * Authors: David Campbell |
1da177e4 LT |
5 | * Tim Waugh <tim@cyberelk.demon.co.uk> |
6 | * Philip Blundell <philb@gnu.org> | |
7 | * Andrea Arcangeli | |
8 | * Riccardo Facchetti <fizban@tin.it> | |
9 | * | |
10 | * based on work by Grant Guenther <grant@torque.net> | |
11 | * and Philip Blundell | |
12 | * | |
13 | * Cleaned up include files - Russell King <linux@arm.uk.linux.org> | |
14 | */ | |
15 | ||
16 | #include <linux/string.h> | |
1da177e4 LT |
17 | #include <linux/init.h> |
18 | #include <linux/module.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/slab.h> | |
22 | #include <linux/parport.h> | |
23 | #include <linux/ctype.h> | |
24 | #include <linux/sysctl.h> | |
6fa45a22 | 25 | #include <linux/device.h> |
1da177e4 | 26 | |
7c0f6ba6 | 27 | #include <linux/uaccess.h> |
1da177e4 LT |
28 | |
29 | #if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS) | |
30 | ||
31 | #define PARPORT_MIN_TIMESLICE_VALUE 1ul | |
32 | #define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ) | |
33 | #define PARPORT_MIN_SPINTIME_VALUE 1 | |
34 | #define PARPORT_MAX_SPINTIME_VALUE 1000 | |
35 | ||
be424c63 | 36 | static int do_active_device(struct ctl_table *table, int write, |
32927393 | 37 | void *result, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
38 | { |
39 | struct parport *port = (struct parport *)table->extra1; | |
40 | char buffer[256]; | |
41 | struct pardevice *dev; | |
42 | int len = 0; | |
43 | ||
44 | if (write) /* can't happen anyway */ | |
45 | return -EACCES; | |
46 | ||
47 | if (*ppos) { | |
48 | *lenp = 0; | |
49 | return 0; | |
50 | } | |
51 | ||
52 | for (dev = port->devices; dev ; dev = dev->next) { | |
53 | if(dev == port->cad) { | |
54 | len += sprintf(buffer, "%s\n", dev->name); | |
55 | } | |
56 | } | |
57 | ||
58 | if(!len) { | |
59 | len += sprintf(buffer, "%s\n", "none"); | |
60 | } | |
61 | ||
62 | if (len > *lenp) | |
63 | len = *lenp; | |
64 | else | |
65 | *lenp = len; | |
66 | ||
67 | *ppos += len; | |
32927393 CH |
68 | memcpy(result, buffer, len); |
69 | return 0; | |
1da177e4 LT |
70 | } |
71 | ||
72 | #ifdef CONFIG_PARPORT_1284 | |
be424c63 | 73 | static int do_autoprobe(struct ctl_table *table, int write, |
32927393 | 74 | void *result, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
75 | { |
76 | struct parport_device_info *info = table->extra2; | |
77 | const char *str; | |
78 | char buffer[256]; | |
79 | int len = 0; | |
80 | ||
81 | if (write) /* permissions stop this */ | |
82 | return -EACCES; | |
83 | ||
84 | if (*ppos) { | |
85 | *lenp = 0; | |
86 | return 0; | |
87 | } | |
88 | ||
89 | if ((str = info->class_name) != NULL) | |
90 | len += sprintf (buffer + len, "CLASS:%s;\n", str); | |
91 | ||
92 | if ((str = info->model) != NULL) | |
93 | len += sprintf (buffer + len, "MODEL:%s;\n", str); | |
94 | ||
95 | if ((str = info->mfr) != NULL) | |
96 | len += sprintf (buffer + len, "MANUFACTURER:%s;\n", str); | |
97 | ||
98 | if ((str = info->description) != NULL) | |
99 | len += sprintf (buffer + len, "DESCRIPTION:%s;\n", str); | |
100 | ||
101 | if ((str = info->cmdset) != NULL) | |
102 | len += sprintf (buffer + len, "COMMAND SET:%s;\n", str); | |
103 | ||
104 | if (len > *lenp) | |
105 | len = *lenp; | |
106 | else | |
107 | *lenp = len; | |
108 | ||
109 | *ppos += len; | |
110 | ||
32927393 CH |
111 | memcpy(result, buffer, len); |
112 | return 0; | |
1da177e4 LT |
113 | } |
114 | #endif /* IEEE1284.3 support. */ | |
115 | ||
be424c63 | 116 | static int do_hardware_base_addr(struct ctl_table *table, int write, |
32927393 | 117 | void *result, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
118 | { |
119 | struct parport *port = (struct parport *)table->extra1; | |
120 | char buffer[20]; | |
121 | int len = 0; | |
122 | ||
123 | if (*ppos) { | |
124 | *lenp = 0; | |
125 | return 0; | |
126 | } | |
127 | ||
128 | if (write) /* permissions prevent this anyway */ | |
129 | return -EACCES; | |
130 | ||
131 | len += sprintf (buffer, "%lu\t%lu\n", port->base, port->base_hi); | |
132 | ||
133 | if (len > *lenp) | |
134 | len = *lenp; | |
135 | else | |
136 | *lenp = len; | |
137 | ||
138 | *ppos += len; | |
32927393 CH |
139 | memcpy(result, buffer, len); |
140 | return 0; | |
1da177e4 LT |
141 | } |
142 | ||
be424c63 | 143 | static int do_hardware_irq(struct ctl_table *table, int write, |
32927393 | 144 | void *result, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
145 | { |
146 | struct parport *port = (struct parport *)table->extra1; | |
147 | char buffer[20]; | |
148 | int len = 0; | |
149 | ||
150 | if (*ppos) { | |
151 | *lenp = 0; | |
152 | return 0; | |
153 | } | |
154 | ||
155 | if (write) /* permissions prevent this anyway */ | |
156 | return -EACCES; | |
157 | ||
158 | len += sprintf (buffer, "%d\n", port->irq); | |
159 | ||
160 | if (len > *lenp) | |
161 | len = *lenp; | |
162 | else | |
163 | *lenp = len; | |
164 | ||
165 | *ppos += len; | |
32927393 CH |
166 | memcpy(result, buffer, len); |
167 | return 0; | |
1da177e4 LT |
168 | } |
169 | ||
be424c63 | 170 | static int do_hardware_dma(struct ctl_table *table, int write, |
32927393 | 171 | void *result, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
172 | { |
173 | struct parport *port = (struct parport *)table->extra1; | |
174 | char buffer[20]; | |
175 | int len = 0; | |
176 | ||
177 | if (*ppos) { | |
178 | *lenp = 0; | |
179 | return 0; | |
180 | } | |
181 | ||
182 | if (write) /* permissions prevent this anyway */ | |
183 | return -EACCES; | |
184 | ||
185 | len += sprintf (buffer, "%d\n", port->dma); | |
186 | ||
187 | if (len > *lenp) | |
188 | len = *lenp; | |
189 | else | |
190 | *lenp = len; | |
191 | ||
192 | *ppos += len; | |
32927393 CH |
193 | memcpy(result, buffer, len); |
194 | return 0; | |
1da177e4 LT |
195 | } |
196 | ||
be424c63 | 197 | static int do_hardware_modes(struct ctl_table *table, int write, |
32927393 | 198 | void *result, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
199 | { |
200 | struct parport *port = (struct parport *)table->extra1; | |
201 | char buffer[40]; | |
202 | int len = 0; | |
203 | ||
204 | if (*ppos) { | |
205 | *lenp = 0; | |
206 | return 0; | |
207 | } | |
208 | ||
209 | if (write) /* permissions prevent this anyway */ | |
210 | return -EACCES; | |
211 | ||
212 | { | |
a6abfdff JP |
213 | #define printmode(x) \ |
214 | do { \ | |
215 | if (port->modes & PARPORT_MODE_##x) \ | |
216 | len += sprintf(buffer + len, "%s%s", f++ ? "," : "", #x); \ | |
217 | } while (0) | |
1da177e4 LT |
218 | int f = 0; |
219 | printmode(PCSPP); | |
220 | printmode(TRISTATE); | |
221 | printmode(COMPAT); | |
222 | printmode(EPP); | |
223 | printmode(ECP); | |
224 | printmode(DMA); | |
225 | #undef printmode | |
226 | } | |
227 | buffer[len++] = '\n'; | |
228 | ||
229 | if (len > *lenp) | |
230 | len = *lenp; | |
231 | else | |
232 | *lenp = len; | |
233 | ||
234 | *ppos += len; | |
32927393 CH |
235 | memcpy(result, buffer, len); |
236 | return 0; | |
1da177e4 LT |
237 | } |
238 | ||
894d2491 EB |
239 | #define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD } |
240 | #define PARPORT_PARPORT_DIR(CHILD) { .procname = "parport", \ | |
2564b7bd | 241 | .mode = 0555, .child = CHILD } |
894d2491 | 242 | #define PARPORT_DEV_DIR(CHILD) { .procname = "dev", .mode = 0555, .child = CHILD } |
25398a15 | 243 | #define PARPORT_DEVICES_ROOT_DIR { .procname = "devices", \ |
2564b7bd | 244 | .mode = 0555, .child = NULL } |
1da177e4 LT |
245 | |
246 | static const unsigned long parport_min_timeslice_value = | |
247 | PARPORT_MIN_TIMESLICE_VALUE; | |
248 | ||
249 | static const unsigned long parport_max_timeslice_value = | |
250 | PARPORT_MAX_TIMESLICE_VALUE; | |
251 | ||
252 | static const int parport_min_spintime_value = | |
253 | PARPORT_MIN_SPINTIME_VALUE; | |
254 | ||
255 | static const int parport_max_spintime_value = | |
256 | PARPORT_MAX_SPINTIME_VALUE; | |
257 | ||
258 | ||
259 | struct parport_sysctl_table { | |
260 | struct ctl_table_header *sysctl_header; | |
be424c63 JP |
261 | struct ctl_table vars[12]; |
262 | struct ctl_table device_dir[2]; | |
263 | struct ctl_table port_dir[2]; | |
264 | struct ctl_table parport_dir[2]; | |
265 | struct ctl_table dev_dir[2]; | |
1da177e4 LT |
266 | }; |
267 | ||
268 | static const struct parport_sysctl_table parport_sysctl_template = { | |
2564b7bd | 269 | .sysctl_header = NULL, |
1da177e4 | 270 | { |
2564b7bd | 271 | { |
2564b7bd EB |
272 | .procname = "spintime", |
273 | .data = NULL, | |
274 | .maxlen = sizeof(int), | |
275 | .mode = 0644, | |
6d456111 | 276 | .proc_handler = proc_dointvec_minmax, |
2564b7bd EB |
277 | .extra1 = (void*) &parport_min_spintime_value, |
278 | .extra2 = (void*) &parport_max_spintime_value | |
279 | }, | |
280 | { | |
2564b7bd EB |
281 | .procname = "base-addr", |
282 | .data = NULL, | |
283 | .maxlen = 0, | |
284 | .mode = 0444, | |
6d456111 | 285 | .proc_handler = do_hardware_base_addr |
2564b7bd EB |
286 | }, |
287 | { | |
2564b7bd EB |
288 | .procname = "irq", |
289 | .data = NULL, | |
290 | .maxlen = 0, | |
291 | .mode = 0444, | |
6d456111 | 292 | .proc_handler = do_hardware_irq |
2564b7bd EB |
293 | }, |
294 | { | |
2564b7bd EB |
295 | .procname = "dma", |
296 | .data = NULL, | |
297 | .maxlen = 0, | |
298 | .mode = 0444, | |
6d456111 | 299 | .proc_handler = do_hardware_dma |
2564b7bd EB |
300 | }, |
301 | { | |
2564b7bd EB |
302 | .procname = "modes", |
303 | .data = NULL, | |
304 | .maxlen = 0, | |
305 | .mode = 0444, | |
6d456111 | 306 | .proc_handler = do_hardware_modes |
2564b7bd | 307 | }, |
1da177e4 LT |
308 | PARPORT_DEVICES_ROOT_DIR, |
309 | #ifdef CONFIG_PARPORT_1284 | |
2564b7bd | 310 | { |
2564b7bd EB |
311 | .procname = "autoprobe", |
312 | .data = NULL, | |
313 | .maxlen = 0, | |
314 | .mode = 0444, | |
6d456111 | 315 | .proc_handler = do_autoprobe |
2564b7bd EB |
316 | }, |
317 | { | |
2564b7bd EB |
318 | .procname = "autoprobe0", |
319 | .data = NULL, | |
320 | .maxlen = 0, | |
321 | .mode = 0444, | |
6d456111 | 322 | .proc_handler = do_autoprobe |
2564b7bd EB |
323 | }, |
324 | { | |
2564b7bd EB |
325 | .procname = "autoprobe1", |
326 | .data = NULL, | |
327 | .maxlen = 0, | |
328 | .mode = 0444, | |
6d456111 | 329 | .proc_handler = do_autoprobe |
2564b7bd EB |
330 | }, |
331 | { | |
2564b7bd EB |
332 | .procname = "autoprobe2", |
333 | .data = NULL, | |
334 | .maxlen = 0, | |
335 | .mode = 0444, | |
6d456111 | 336 | .proc_handler = do_autoprobe |
2564b7bd EB |
337 | }, |
338 | { | |
2564b7bd EB |
339 | .procname = "autoprobe3", |
340 | .data = NULL, | |
341 | .maxlen = 0, | |
342 | .mode = 0444, | |
6d456111 | 343 | .proc_handler = do_autoprobe |
2564b7bd | 344 | }, |
1da177e4 | 345 | #endif /* IEEE 1284 support */ |
2564b7bd | 346 | {} |
1da177e4 | 347 | }, |
2564b7bd EB |
348 | { |
349 | { | |
2564b7bd EB |
350 | .procname = "active", |
351 | .data = NULL, | |
352 | .maxlen = 0, | |
353 | .mode = 0444, | |
6d456111 | 354 | .proc_handler = do_active_device |
2564b7bd EB |
355 | }, |
356 | {} | |
357 | }, | |
358 | { | |
359 | PARPORT_PORT_DIR(NULL), | |
360 | {} | |
361 | }, | |
362 | { | |
363 | PARPORT_PARPORT_DIR(NULL), | |
364 | {} | |
365 | }, | |
366 | { | |
367 | PARPORT_DEV_DIR(NULL), | |
368 | {} | |
369 | } | |
1da177e4 LT |
370 | }; |
371 | ||
372 | struct parport_device_sysctl_table | |
373 | { | |
374 | struct ctl_table_header *sysctl_header; | |
be424c63 JP |
375 | struct ctl_table vars[2]; |
376 | struct ctl_table device_dir[2]; | |
377 | struct ctl_table devices_root_dir[2]; | |
378 | struct ctl_table port_dir[2]; | |
379 | struct ctl_table parport_dir[2]; | |
380 | struct ctl_table dev_dir[2]; | |
1da177e4 LT |
381 | }; |
382 | ||
383 | static const struct parport_device_sysctl_table | |
384 | parport_device_sysctl_template = { | |
2564b7bd EB |
385 | .sysctl_header = NULL, |
386 | { | |
387 | { | |
2564b7bd EB |
388 | .procname = "timeslice", |
389 | .data = NULL, | |
60af8803 | 390 | .maxlen = sizeof(unsigned long), |
2564b7bd | 391 | .mode = 0644, |
6d456111 | 392 | .proc_handler = proc_doulongvec_ms_jiffies_minmax, |
2564b7bd EB |
393 | .extra1 = (void*) &parport_min_timeslice_value, |
394 | .extra2 = (void*) &parport_max_timeslice_value | |
395 | }, | |
396 | }, | |
397 | { | |
398 | { | |
2564b7bd EB |
399 | .procname = NULL, |
400 | .data = NULL, | |
401 | .maxlen = 0, | |
402 | .mode = 0555, | |
403 | .child = NULL | |
404 | }, | |
405 | {} | |
406 | }, | |
1da177e4 | 407 | { |
2564b7bd EB |
408 | PARPORT_DEVICES_ROOT_DIR, |
409 | {} | |
410 | }, | |
411 | { | |
412 | PARPORT_PORT_DIR(NULL), | |
413 | {} | |
1da177e4 | 414 | }, |
2564b7bd EB |
415 | { |
416 | PARPORT_PARPORT_DIR(NULL), | |
417 | {} | |
418 | }, | |
419 | { | |
420 | PARPORT_DEV_DIR(NULL), | |
421 | {} | |
422 | } | |
1da177e4 LT |
423 | }; |
424 | ||
425 | struct parport_default_sysctl_table | |
426 | { | |
427 | struct ctl_table_header *sysctl_header; | |
be424c63 JP |
428 | struct ctl_table vars[3]; |
429 | struct ctl_table default_dir[2]; | |
430 | struct ctl_table parport_dir[2]; | |
431 | struct ctl_table dev_dir[2]; | |
1da177e4 LT |
432 | }; |
433 | ||
1da177e4 LT |
434 | static struct parport_default_sysctl_table |
435 | parport_default_sysctl_table = { | |
2564b7bd EB |
436 | .sysctl_header = NULL, |
437 | { | |
438 | { | |
2564b7bd EB |
439 | .procname = "timeslice", |
440 | .data = &parport_default_timeslice, | |
441 | .maxlen = sizeof(parport_default_timeslice), | |
442 | .mode = 0644, | |
6d456111 | 443 | .proc_handler = proc_doulongvec_ms_jiffies_minmax, |
2564b7bd EB |
444 | .extra1 = (void*) &parport_min_timeslice_value, |
445 | .extra2 = (void*) &parport_max_timeslice_value | |
446 | }, | |
447 | { | |
2564b7bd EB |
448 | .procname = "spintime", |
449 | .data = &parport_default_spintime, | |
450 | .maxlen = sizeof(parport_default_spintime), | |
451 | .mode = 0644, | |
6d456111 | 452 | .proc_handler = proc_dointvec_minmax, |
2564b7bd EB |
453 | .extra1 = (void*) &parport_min_spintime_value, |
454 | .extra2 = (void*) &parport_max_spintime_value | |
455 | }, | |
456 | {} | |
457 | }, | |
1da177e4 | 458 | { |
2564b7bd | 459 | { |
2564b7bd EB |
460 | .procname = "default", |
461 | .mode = 0555, | |
462 | .child = parport_default_sysctl_table.vars | |
463 | }, | |
464 | {} | |
1da177e4 | 465 | }, |
1da177e4 | 466 | { |
2564b7bd EB |
467 | PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir), |
468 | {} | |
469 | }, | |
470 | { | |
471 | PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir), | |
472 | {} | |
473 | } | |
1da177e4 LT |
474 | }; |
475 | ||
476 | ||
477 | int parport_proc_register(struct parport *port) | |
478 | { | |
479 | struct parport_sysctl_table *t; | |
480 | int i; | |
481 | ||
2451a848 | 482 | t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL); |
1da177e4 LT |
483 | if (t == NULL) |
484 | return -ENOMEM; | |
1da177e4 LT |
485 | |
486 | t->device_dir[0].extra1 = port; | |
487 | ||
25398a15 | 488 | for (i = 0; i < 5; i++) |
1da177e4 LT |
489 | t->vars[i].extra1 = port; |
490 | ||
491 | t->vars[0].data = &port->spintime; | |
492 | t->vars[5].child = t->device_dir; | |
493 | ||
494 | for (i = 0; i < 5; i++) | |
495 | t->vars[6 + i].extra2 = &port->probe_info[i]; | |
496 | ||
497 | t->port_dir[0].procname = port->name; | |
1da177e4 LT |
498 | |
499 | t->port_dir[0].child = t->vars; | |
500 | t->parport_dir[0].child = t->port_dir; | |
501 | t->dev_dir[0].child = t->parport_dir; | |
502 | ||
0b4d4147 | 503 | t->sysctl_header = register_sysctl_table(t->dev_dir); |
1da177e4 LT |
504 | if (t->sysctl_header == NULL) { |
505 | kfree(t); | |
506 | t = NULL; | |
507 | } | |
508 | port->sysctl_table = t; | |
509 | return 0; | |
510 | } | |
511 | ||
512 | int parport_proc_unregister(struct parport *port) | |
513 | { | |
514 | if (port->sysctl_table) { | |
515 | struct parport_sysctl_table *t = port->sysctl_table; | |
516 | port->sysctl_table = NULL; | |
517 | unregister_sysctl_table(t->sysctl_header); | |
518 | kfree(t); | |
519 | } | |
520 | return 0; | |
521 | } | |
522 | ||
523 | int parport_device_proc_register(struct pardevice *device) | |
524 | { | |
525 | struct parport_device_sysctl_table *t; | |
526 | struct parport * port = device->port; | |
527 | ||
2451a848 | 528 | t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL); |
1da177e4 LT |
529 | if (t == NULL) |
530 | return -ENOMEM; | |
1da177e4 LT |
531 | |
532 | t->dev_dir[0].child = t->parport_dir; | |
533 | t->parport_dir[0].child = t->port_dir; | |
534 | t->port_dir[0].procname = port->name; | |
1da177e4 LT |
535 | t->port_dir[0].child = t->devices_root_dir; |
536 | t->devices_root_dir[0].child = t->device_dir; | |
537 | ||
1da177e4 | 538 | t->device_dir[0].procname = device->name; |
1da177e4 LT |
539 | t->device_dir[0].child = t->vars; |
540 | t->vars[0].data = &device->timeslice; | |
541 | ||
0b4d4147 | 542 | t->sysctl_header = register_sysctl_table(t->dev_dir); |
1da177e4 LT |
543 | if (t->sysctl_header == NULL) { |
544 | kfree(t); | |
545 | t = NULL; | |
546 | } | |
547 | device->sysctl_table = t; | |
548 | return 0; | |
549 | } | |
550 | ||
551 | int parport_device_proc_unregister(struct pardevice *device) | |
552 | { | |
553 | if (device->sysctl_table) { | |
554 | struct parport_device_sysctl_table *t = device->sysctl_table; | |
555 | device->sysctl_table = NULL; | |
556 | unregister_sysctl_table(t->sysctl_header); | |
557 | kfree(t); | |
558 | } | |
559 | return 0; | |
560 | } | |
561 | ||
562 | static int __init parport_default_proc_register(void) | |
563 | { | |
6fa45a22 SM |
564 | int ret; |
565 | ||
1da177e4 | 566 | parport_default_sysctl_table.sysctl_header = |
0b4d4147 | 567 | register_sysctl_table(parport_default_sysctl_table.dev_dir); |
6fa45a22 SM |
568 | if (!parport_default_sysctl_table.sysctl_header) |
569 | return -ENOMEM; | |
570 | ret = parport_bus_init(); | |
571 | if (ret) { | |
572 | unregister_sysctl_table(parport_default_sysctl_table. | |
573 | sysctl_header); | |
574 | return ret; | |
575 | } | |
1da177e4 LT |
576 | return 0; |
577 | } | |
578 | ||
579 | static void __exit parport_default_proc_unregister(void) | |
580 | { | |
581 | if (parport_default_sysctl_table.sysctl_header) { | |
582 | unregister_sysctl_table(parport_default_sysctl_table. | |
583 | sysctl_header); | |
584 | parport_default_sysctl_table.sysctl_header = NULL; | |
585 | } | |
6fa45a22 | 586 | parport_bus_exit(); |
1da177e4 LT |
587 | } |
588 | ||
589 | #else /* no sysctl or no procfs*/ | |
590 | ||
591 | int parport_proc_register(struct parport *pp) | |
592 | { | |
593 | return 0; | |
594 | } | |
595 | ||
596 | int parport_proc_unregister(struct parport *pp) | |
597 | { | |
598 | return 0; | |
599 | } | |
600 | ||
601 | int parport_device_proc_register(struct pardevice *device) | |
602 | { | |
603 | return 0; | |
604 | } | |
605 | ||
606 | int parport_device_proc_unregister(struct pardevice *device) | |
607 | { | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static int __init parport_default_proc_register (void) | |
612 | { | |
6fa45a22 | 613 | return parport_bus_init(); |
1da177e4 LT |
614 | } |
615 | ||
616 | static void __exit parport_default_proc_unregister (void) | |
617 | { | |
6fa45a22 | 618 | parport_bus_exit(); |
1da177e4 LT |
619 | } |
620 | #endif | |
621 | ||
bbca503b | 622 | subsys_initcall(parport_default_proc_register) |
1da177e4 | 623 | module_exit(parport_default_proc_unregister) |