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HID: picolcd: Convert to use sysfs_streq()
[mirror_ubuntu-focal-kernel.git] / drivers / hid / hid-picolcd_core.c
1 /***************************************************************************
2 * Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> *
3 * *
4 * Based on Logitech G13 driver (v0.4) *
5 * Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> *
6 * *
7 * This program is free software: you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation, version 2 of the License. *
10 * *
11 * This driver is distributed in the hope that it will be useful, but *
12 * WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14 * General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this software. If not see <http://www.gnu.org/licenses/>. *
18 ***************************************************************************/
19
20 #include <linux/hid.h>
21 #include <linux/hid-debug.h>
22 #include <linux/input.h>
23 #include "hid-ids.h"
24
25 #include <linux/fb.h>
26 #include <linux/vmalloc.h>
27
28 #include <linux/completion.h>
29 #include <linux/uaccess.h>
30 #include <linux/module.h>
31 #include <linux/string.h>
32
33 #include "hid-picolcd.h"
34
35
36 /* Input device
37 *
38 * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys
39 * and header for 4x4 key matrix. The built-in keys are part of the matrix.
40 */
41 static const unsigned short def_keymap[PICOLCD_KEYS] = {
42 KEY_RESERVED, /* none */
43 KEY_BACK, /* col 4 + row 1 */
44 KEY_HOMEPAGE, /* col 3 + row 1 */
45 KEY_RESERVED, /* col 2 + row 1 */
46 KEY_RESERVED, /* col 1 + row 1 */
47 KEY_SCROLLUP, /* col 4 + row 2 */
48 KEY_OK, /* col 3 + row 2 */
49 KEY_SCROLLDOWN, /* col 2 + row 2 */
50 KEY_RESERVED, /* col 1 + row 2 */
51 KEY_RESERVED, /* col 4 + row 3 */
52 KEY_RESERVED, /* col 3 + row 3 */
53 KEY_RESERVED, /* col 2 + row 3 */
54 KEY_RESERVED, /* col 1 + row 3 */
55 KEY_RESERVED, /* col 4 + row 4 */
56 KEY_RESERVED, /* col 3 + row 4 */
57 KEY_RESERVED, /* col 2 + row 4 */
58 KEY_RESERVED, /* col 1 + row 4 */
59 };
60
61
62 /* Find a given report */
63 struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir)
64 {
65 struct list_head *feature_report_list = &hdev->report_enum[dir].report_list;
66 struct hid_report *report = NULL;
67
68 list_for_each_entry(report, feature_report_list, list) {
69 if (report->id == id)
70 return report;
71 }
72 hid_warn(hdev, "No report with id 0x%x found\n", id);
73 return NULL;
74 }
75
76 /* Submit a report and wait for a reply from device - if device fades away
77 * or does not respond in time, return NULL */
78 struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
79 int report_id, const u8 *raw_data, int size)
80 {
81 struct picolcd_data *data = hid_get_drvdata(hdev);
82 struct picolcd_pending *work;
83 struct hid_report *report = picolcd_out_report(report_id, hdev);
84 unsigned long flags;
85 int i, j, k;
86
87 if (!report || !data)
88 return NULL;
89 if (data->status & PICOLCD_FAILED)
90 return NULL;
91 work = kzalloc(sizeof(*work), GFP_KERNEL);
92 if (!work)
93 return NULL;
94
95 init_completion(&work->ready);
96 work->out_report = report;
97 work->in_report = NULL;
98 work->raw_size = 0;
99
100 mutex_lock(&data->mutex);
101 spin_lock_irqsave(&data->lock, flags);
102 for (i = k = 0; i < report->maxfield; i++)
103 for (j = 0; j < report->field[i]->report_count; j++) {
104 hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
105 k++;
106 }
107 if (data->status & PICOLCD_FAILED) {
108 kfree(work);
109 work = NULL;
110 } else {
111 data->pending = work;
112 hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
113 spin_unlock_irqrestore(&data->lock, flags);
114 wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
115 spin_lock_irqsave(&data->lock, flags);
116 data->pending = NULL;
117 }
118 spin_unlock_irqrestore(&data->lock, flags);
119 mutex_unlock(&data->mutex);
120 return work;
121 }
122
123 /*
124 * input class device
125 */
126 static int picolcd_raw_keypad(struct picolcd_data *data,
127 struct hid_report *report, u8 *raw_data, int size)
128 {
129 /*
130 * Keypad event
131 * First and second data bytes list currently pressed keys,
132 * 0x00 means no key and at most 2 keys may be pressed at same time
133 */
134 int i, j;
135
136 /* determine newly pressed keys */
137 for (i = 0; i < size; i++) {
138 unsigned int key_code;
139 if (raw_data[i] == 0)
140 continue;
141 for (j = 0; j < sizeof(data->pressed_keys); j++)
142 if (data->pressed_keys[j] == raw_data[i])
143 goto key_already_down;
144 for (j = 0; j < sizeof(data->pressed_keys); j++)
145 if (data->pressed_keys[j] == 0) {
146 data->pressed_keys[j] = raw_data[i];
147 break;
148 }
149 input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]);
150 if (raw_data[i] < PICOLCD_KEYS)
151 key_code = data->keycode[raw_data[i]];
152 else
153 key_code = KEY_UNKNOWN;
154 if (key_code != KEY_UNKNOWN) {
155 dbg_hid(PICOLCD_NAME " got key press for %u:%d",
156 raw_data[i], key_code);
157 input_report_key(data->input_keys, key_code, 1);
158 }
159 input_sync(data->input_keys);
160 key_already_down:
161 continue;
162 }
163
164 /* determine newly released keys */
165 for (j = 0; j < sizeof(data->pressed_keys); j++) {
166 unsigned int key_code;
167 if (data->pressed_keys[j] == 0)
168 continue;
169 for (i = 0; i < size; i++)
170 if (data->pressed_keys[j] == raw_data[i])
171 goto key_still_down;
172 input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]);
173 if (data->pressed_keys[j] < PICOLCD_KEYS)
174 key_code = data->keycode[data->pressed_keys[j]];
175 else
176 key_code = KEY_UNKNOWN;
177 if (key_code != KEY_UNKNOWN) {
178 dbg_hid(PICOLCD_NAME " got key release for %u:%d",
179 data->pressed_keys[j], key_code);
180 input_report_key(data->input_keys, key_code, 0);
181 }
182 input_sync(data->input_keys);
183 data->pressed_keys[j] = 0;
184 key_still_down:
185 continue;
186 }
187 return 1;
188 }
189
190 static int picolcd_check_version(struct hid_device *hdev)
191 {
192 struct picolcd_data *data = hid_get_drvdata(hdev);
193 struct picolcd_pending *verinfo;
194 int ret = 0;
195
196 if (!data)
197 return -ENODEV;
198
199 verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0);
200 if (!verinfo) {
201 hid_err(hdev, "no version response from PicoLCD\n");
202 return -ENODEV;
203 }
204
205 if (verinfo->raw_size == 2) {
206 data->version[0] = verinfo->raw_data[1];
207 data->version[1] = verinfo->raw_data[0];
208 if (data->status & PICOLCD_BOOTLOADER) {
209 hid_info(hdev, "PicoLCD, bootloader version %d.%d\n",
210 verinfo->raw_data[1], verinfo->raw_data[0]);
211 } else {
212 hid_info(hdev, "PicoLCD, firmware version %d.%d\n",
213 verinfo->raw_data[1], verinfo->raw_data[0]);
214 }
215 } else {
216 hid_err(hdev, "confused, got unexpected version response from PicoLCD\n");
217 ret = -EINVAL;
218 }
219 kfree(verinfo);
220 return ret;
221 }
222
223 /*
224 * Reset our device and wait for answer to VERSION request
225 */
226 int picolcd_reset(struct hid_device *hdev)
227 {
228 struct picolcd_data *data = hid_get_drvdata(hdev);
229 struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
230 unsigned long flags;
231 int error;
232
233 if (!data || !report || report->maxfield != 1)
234 return -ENODEV;
235
236 spin_lock_irqsave(&data->lock, flags);
237 if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
238 data->status |= PICOLCD_BOOTLOADER;
239
240 /* perform the reset */
241 hid_set_field(report->field[0], 0, 1);
242 if (data->status & PICOLCD_FAILED) {
243 spin_unlock_irqrestore(&data->lock, flags);
244 return -ENODEV;
245 }
246 hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
247 spin_unlock_irqrestore(&data->lock, flags);
248
249 error = picolcd_check_version(hdev);
250 if (error)
251 return error;
252
253 picolcd_resume_lcd(data);
254 picolcd_resume_backlight(data);
255 picolcd_fb_refresh(data);
256 picolcd_leds_set(data);
257 return 0;
258 }
259
260 /*
261 * The "operation_mode" sysfs attribute
262 */
263 static ssize_t picolcd_operation_mode_show(struct device *dev,
264 struct device_attribute *attr, char *buf)
265 {
266 struct picolcd_data *data = dev_get_drvdata(dev);
267
268 if (data->status & PICOLCD_BOOTLOADER)
269 return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n");
270 else
271 return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n");
272 }
273
274 static ssize_t picolcd_operation_mode_store(struct device *dev,
275 struct device_attribute *attr, const char *buf, size_t count)
276 {
277 struct picolcd_data *data = dev_get_drvdata(dev);
278 struct hid_report *report = NULL;
279 int timeout = data->opmode_delay;
280 unsigned long flags;
281
282 if (sysfs_streq(buf, "lcd")) {
283 if (data->status & PICOLCD_BOOTLOADER)
284 report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
285 } else if (sysfs_streq(buf, "bootloader")) {
286 if (!(data->status & PICOLCD_BOOTLOADER))
287 report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
288 } else {
289 return -EINVAL;
290 }
291
292 if (!report || report->maxfield != 1)
293 return -EINVAL;
294
295 spin_lock_irqsave(&data->lock, flags);
296 hid_set_field(report->field[0], 0, timeout & 0xff);
297 hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
298 hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
299 spin_unlock_irqrestore(&data->lock, flags);
300 return count;
301 }
302
303 static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show,
304 picolcd_operation_mode_store);
305
306 /*
307 * The "operation_mode_delay" sysfs attribute
308 */
309 static ssize_t picolcd_operation_mode_delay_show(struct device *dev,
310 struct device_attribute *attr, char *buf)
311 {
312 struct picolcd_data *data = dev_get_drvdata(dev);
313
314 return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay);
315 }
316
317 static ssize_t picolcd_operation_mode_delay_store(struct device *dev,
318 struct device_attribute *attr, const char *buf, size_t count)
319 {
320 struct picolcd_data *data = dev_get_drvdata(dev);
321 unsigned u;
322 if (sscanf(buf, "%u", &u) != 1)
323 return -EINVAL;
324 if (u > 30000)
325 return -EINVAL;
326 else
327 data->opmode_delay = u;
328 return count;
329 }
330
331 static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show,
332 picolcd_operation_mode_delay_store);
333
334 /*
335 * Handle raw report as sent by device
336 */
337 static int picolcd_raw_event(struct hid_device *hdev,
338 struct hid_report *report, u8 *raw_data, int size)
339 {
340 struct picolcd_data *data = hid_get_drvdata(hdev);
341 unsigned long flags;
342 int ret = 0;
343
344 if (!data)
345 return 1;
346
347 if (size > 64) {
348 hid_warn(hdev, "invalid size value (%d) for picolcd raw event (%d)\n",
349 size, report->id);
350 return 0;
351 }
352
353 if (report->id == REPORT_KEY_STATE) {
354 if (data->input_keys)
355 ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);
356 } else if (report->id == REPORT_IR_DATA) {
357 ret = picolcd_raw_cir(data, report, raw_data+1, size-1);
358 } else {
359 spin_lock_irqsave(&data->lock, flags);
360 /*
361 * We let the caller of picolcd_send_and_wait() check if the
362 * report we got is one of the expected ones or not.
363 */
364 if (data->pending) {
365 memcpy(data->pending->raw_data, raw_data+1, size-1);
366 data->pending->raw_size = size-1;
367 data->pending->in_report = report;
368 complete(&data->pending->ready);
369 }
370 spin_unlock_irqrestore(&data->lock, flags);
371 }
372
373 picolcd_debug_raw_event(data, hdev, report, raw_data, size);
374 return 1;
375 }
376
377 #ifdef CONFIG_PM
378 static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
379 {
380 if (PMSG_IS_AUTO(message))
381 return 0;
382
383 picolcd_suspend_backlight(hid_get_drvdata(hdev));
384 dbg_hid(PICOLCD_NAME " device ready for suspend\n");
385 return 0;
386 }
387
388 static int picolcd_resume(struct hid_device *hdev)
389 {
390 int ret;
391 ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
392 if (ret)
393 dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
394 return 0;
395 }
396
397 static int picolcd_reset_resume(struct hid_device *hdev)
398 {
399 int ret;
400 ret = picolcd_reset(hdev);
401 if (ret)
402 dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
403 ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
404 if (ret)
405 dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
406 ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
407 if (ret)
408 dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
409 ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
410 if (ret)
411 dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
412 picolcd_leds_set(hid_get_drvdata(hdev));
413 return 0;
414 }
415 #endif
416
417 /* initialize keypad input device */
418 static int picolcd_init_keys(struct picolcd_data *data,
419 struct hid_report *report)
420 {
421 struct hid_device *hdev = data->hdev;
422 struct input_dev *idev;
423 int error, i;
424
425 if (!report)
426 return -ENODEV;
427 if (report->maxfield != 1 || report->field[0]->report_count != 2 ||
428 report->field[0]->report_size != 8) {
429 hid_err(hdev, "unsupported KEY_STATE report\n");
430 return -EINVAL;
431 }
432
433 idev = input_allocate_device();
434 if (idev == NULL) {
435 hid_err(hdev, "failed to allocate input device\n");
436 return -ENOMEM;
437 }
438 input_set_drvdata(idev, hdev);
439 memcpy(data->keycode, def_keymap, sizeof(def_keymap));
440 idev->name = hdev->name;
441 idev->phys = hdev->phys;
442 idev->uniq = hdev->uniq;
443 idev->id.bustype = hdev->bus;
444 idev->id.vendor = hdev->vendor;
445 idev->id.product = hdev->product;
446 idev->id.version = hdev->version;
447 idev->dev.parent = &hdev->dev;
448 idev->keycode = &data->keycode;
449 idev->keycodemax = PICOLCD_KEYS;
450 idev->keycodesize = sizeof(data->keycode[0]);
451 input_set_capability(idev, EV_MSC, MSC_SCAN);
452 set_bit(EV_REP, idev->evbit);
453 for (i = 0; i < PICOLCD_KEYS; i++)
454 input_set_capability(idev, EV_KEY, data->keycode[i]);
455 error = input_register_device(idev);
456 if (error) {
457 hid_err(hdev, "error registering the input device\n");
458 input_free_device(idev);
459 return error;
460 }
461 data->input_keys = idev;
462 return 0;
463 }
464
465 static void picolcd_exit_keys(struct picolcd_data *data)
466 {
467 struct input_dev *idev = data->input_keys;
468
469 data->input_keys = NULL;
470 if (idev)
471 input_unregister_device(idev);
472 }
473
474 static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
475 {
476 int error;
477
478 /* Setup keypad input device */
479 error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
480 if (error)
481 goto err;
482
483 /* Setup CIR input device */
484 error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev));
485 if (error)
486 goto err;
487
488 /* Set up the framebuffer device */
489 error = picolcd_init_framebuffer(data);
490 if (error)
491 goto err;
492
493 /* Setup lcd class device */
494 error = picolcd_init_lcd(data, picolcd_out_report(REPORT_CONTRAST, hdev));
495 if (error)
496 goto err;
497
498 /* Setup backlight class device */
499 error = picolcd_init_backlight(data, picolcd_out_report(REPORT_BRIGHTNESS, hdev));
500 if (error)
501 goto err;
502
503 /* Setup the LED class devices */
504 error = picolcd_init_leds(data, picolcd_out_report(REPORT_LED_STATE, hdev));
505 if (error)
506 goto err;
507
508 picolcd_init_devfs(data, picolcd_out_report(REPORT_EE_READ, hdev),
509 picolcd_out_report(REPORT_EE_WRITE, hdev),
510 picolcd_out_report(REPORT_READ_MEMORY, hdev),
511 picolcd_out_report(REPORT_WRITE_MEMORY, hdev),
512 picolcd_out_report(REPORT_RESET, hdev));
513 return 0;
514 err:
515 picolcd_exit_leds(data);
516 picolcd_exit_backlight(data);
517 picolcd_exit_lcd(data);
518 picolcd_exit_framebuffer(data);
519 picolcd_exit_cir(data);
520 picolcd_exit_keys(data);
521 return error;
522 }
523
524 static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data)
525 {
526 picolcd_init_devfs(data, NULL, NULL,
527 picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
528 picolcd_out_report(REPORT_BL_WRITE_MEMORY, hdev), NULL);
529 return 0;
530 }
531
532 static int picolcd_probe(struct hid_device *hdev,
533 const struct hid_device_id *id)
534 {
535 struct picolcd_data *data;
536 int error = -ENOMEM;
537
538 dbg_hid(PICOLCD_NAME " hardware probe...\n");
539
540 /*
541 * Let's allocate the picolcd data structure, set some reasonable
542 * defaults, and associate it with the device
543 */
544 data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL);
545 if (data == NULL) {
546 hid_err(hdev, "can't allocate space for Minibox PicoLCD device data\n");
547 error = -ENOMEM;
548 goto err_no_cleanup;
549 }
550
551 spin_lock_init(&data->lock);
552 mutex_init(&data->mutex);
553 data->hdev = hdev;
554 data->opmode_delay = 5000;
555 if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
556 data->status |= PICOLCD_BOOTLOADER;
557 hid_set_drvdata(hdev, data);
558
559 /* Parse the device reports and start it up */
560 error = hid_parse(hdev);
561 if (error) {
562 hid_err(hdev, "device report parse failed\n");
563 goto err_cleanup_data;
564 }
565
566 error = hid_hw_start(hdev, 0);
567 if (error) {
568 hid_err(hdev, "hardware start failed\n");
569 goto err_cleanup_data;
570 }
571
572 error = hid_hw_open(hdev);
573 if (error) {
574 hid_err(hdev, "failed to open input interrupt pipe for key and IR events\n");
575 goto err_cleanup_hid_hw;
576 }
577
578 error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay);
579 if (error) {
580 hid_err(hdev, "failed to create sysfs attributes\n");
581 goto err_cleanup_hid_ll;
582 }
583
584 error = device_create_file(&hdev->dev, &dev_attr_operation_mode);
585 if (error) {
586 hid_err(hdev, "failed to create sysfs attributes\n");
587 goto err_cleanup_sysfs1;
588 }
589
590 if (data->status & PICOLCD_BOOTLOADER)
591 error = picolcd_probe_bootloader(hdev, data);
592 else
593 error = picolcd_probe_lcd(hdev, data);
594 if (error)
595 goto err_cleanup_sysfs2;
596
597 dbg_hid(PICOLCD_NAME " activated and initialized\n");
598 return 0;
599
600 err_cleanup_sysfs2:
601 device_remove_file(&hdev->dev, &dev_attr_operation_mode);
602 err_cleanup_sysfs1:
603 device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
604 err_cleanup_hid_ll:
605 hid_hw_close(hdev);
606 err_cleanup_hid_hw:
607 hid_hw_stop(hdev);
608 err_cleanup_data:
609 kfree(data);
610 err_no_cleanup:
611 hid_set_drvdata(hdev, NULL);
612
613 return error;
614 }
615
616 static void picolcd_remove(struct hid_device *hdev)
617 {
618 struct picolcd_data *data = hid_get_drvdata(hdev);
619 unsigned long flags;
620
621 dbg_hid(PICOLCD_NAME " hardware remove...\n");
622 spin_lock_irqsave(&data->lock, flags);
623 data->status |= PICOLCD_FAILED;
624 spin_unlock_irqrestore(&data->lock, flags);
625
626 picolcd_exit_devfs(data);
627 device_remove_file(&hdev->dev, &dev_attr_operation_mode);
628 device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
629 hid_hw_close(hdev);
630 hid_hw_stop(hdev);
631
632 /* Shortcut potential pending reply that will never arrive */
633 spin_lock_irqsave(&data->lock, flags);
634 if (data->pending)
635 complete(&data->pending->ready);
636 spin_unlock_irqrestore(&data->lock, flags);
637
638 /* Cleanup LED */
639 picolcd_exit_leds(data);
640 /* Clean up the framebuffer */
641 picolcd_exit_backlight(data);
642 picolcd_exit_lcd(data);
643 picolcd_exit_framebuffer(data);
644 /* Cleanup input */
645 picolcd_exit_cir(data);
646 picolcd_exit_keys(data);
647
648 hid_set_drvdata(hdev, NULL);
649 mutex_destroy(&data->mutex);
650 /* Finally, clean up the picolcd data itself */
651 kfree(data);
652 }
653
654 static const struct hid_device_id picolcd_devices[] = {
655 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
656 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
657 { }
658 };
659 MODULE_DEVICE_TABLE(hid, picolcd_devices);
660
661 static struct hid_driver picolcd_driver = {
662 .name = "hid-picolcd",
663 .id_table = picolcd_devices,
664 .probe = picolcd_probe,
665 .remove = picolcd_remove,
666 .raw_event = picolcd_raw_event,
667 #ifdef CONFIG_PM
668 .suspend = picolcd_suspend,
669 .resume = picolcd_resume,
670 .reset_resume = picolcd_reset_resume,
671 #endif
672 };
673 module_hid_driver(picolcd_driver);
674
675 MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver");
676 MODULE_LICENSE("GPL v2");
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