usb: gadget: f_mtp: Avoid race between mtp_read and mtp_function_disable
[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / drivers / hid / hid-samsung.c
CommitLineData
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1/*
2 * HID driver for some samsung "special" devices
3 *
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006-2007 Jiri Kosina
980a3da6 8 * Copyright (c) 2008 Jiri Slaby
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9 * Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
10 *
11 *
12 * This driver supports several HID devices:
13 *
14 * [0419:0001] Samsung IrDA remote controller (reports as Cypress USB Mouse).
15 * various hid report fixups for different variants.
16 *
17 * [0419:0600] Creative Desktop Wireless 6000 keyboard/mouse combo
18 * several key mappings used from the consumer usage page
19 * deviate from the USB HUT 1.12 standard.
20 *
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21 */
22
23/*
24 * This program is free software; you can redistribute it and/or modify it
25 * under the terms of the GNU General Public License as published by the Free
26 * Software Foundation; either version 2 of the License, or (at your option)
27 * any later version.
28 */
29
30#include <linux/device.h>
b355850b 31#include <linux/usb.h>
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32#include <linux/hid.h>
33#include <linux/module.h>
34
35#include "hid-ids.h"
36
37/*
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38 * There are several variants for 0419:0001:
39 *
40 * 1. 184 byte report descriptor
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41 * Vendor specific report #4 has a size of 48 bit,
42 * and therefore is not accepted when inspecting the descriptors.
43 * As a workaround we reinterpret the report as:
44 * Variable type, count 6, size 8 bit, log. maximum 255
45 * The burden to reconstruct the data is moved into user space.
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46 *
47 * 2. 203 byte report descriptor
48 * Report #4 has an array field with logical range 0..18 instead of 1..15.
49 *
50 * 3. 135 byte report descriptor
51 * Report #4 has an array field with logical range 0..17 instead of 1..14.
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52 *
53 * 4. 171 byte report descriptor
54 * Report #3 has an array field with logical range 0..1 instead of 1..3.
980a3da6 55 */
b355850b 56static inline void samsung_irda_dev_trace(struct hid_device *hdev,
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57 unsigned int rsize)
58{
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59 hid_info(hdev, "fixing up Samsung IrDA %d byte report descriptor\n",
60 rsize);
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61}
62
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63static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
64 unsigned int *rsize)
980a3da6 65{
73e4008d 66 if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
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67 rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
68 rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
69 rdesc[182] == 0x40) {
b355850b 70 samsung_irda_dev_trace(hdev, 184);
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71 rdesc[176] = 0xff;
72 rdesc[178] = 0x08;
73 rdesc[180] = 0x06;
74 rdesc[182] = 0x42;
0810b511 75 } else
73e4008d 76 if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
0810b511 77 rdesc[194] == 0x25 && rdesc[195] == 0x12) {
b355850b 78 samsung_irda_dev_trace(hdev, 203);
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79 rdesc[193] = 0x1;
80 rdesc[195] = 0xf;
81 } else
73e4008d 82 if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
0810b511 83 rdesc[126] == 0x25 && rdesc[127] == 0x11) {
b355850b 84 samsung_irda_dev_trace(hdev, 135);
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85 rdesc[125] = 0x1;
86 rdesc[127] = 0xe;
3975bc56 87 } else
73e4008d 88 if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
3975bc56 89 rdesc[162] == 0x25 && rdesc[163] == 0x01) {
b355850b 90 samsung_irda_dev_trace(hdev, 171);
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91 rdesc[161] = 0x1;
92 rdesc[163] = 0x3;
980a3da6 93 }
73e4008d 94 return rdesc;
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95}
96
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97#define samsung_kbd_mouse_map_key_clear(c) \
98 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
99
100static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
101 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
102 unsigned long **bit, int *max)
103{
104 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
105 unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
106
107 if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
108 return 0;
109
110 dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
111 usage->hid & HID_USAGE);
112
113 switch (usage->hid & HID_USAGE) {
114 /* report 2 */
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115 case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
116 case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
117 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
118 case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
119 case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
120 case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
121 case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
122 case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
123 case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
124 case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
125 case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
126 default:
127 return 0;
128 }
129
130 return 1;
131}
132
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133static int samsung_kbd_input_mapping(struct hid_device *hdev,
134 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
135 unsigned long **bit, int *max)
136{
137 if (!(HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE) ||
138 HID_UP_KEYBOARD == (usage->hid & HID_USAGE_PAGE)))
139 return 0;
140
141 dbg_hid("samsung wireless keyboard input mapping event [0x%x]\n",
142 usage->hid & HID_USAGE);
143
144 if (HID_UP_KEYBOARD == (usage->hid & HID_USAGE_PAGE)) {
145 switch (usage->hid & HID_USAGE) {
146 set_bit(EV_REP, hi->input->evbit);
147 /* Only for UK keyboard */
148 /* key found */
149#ifdef CONFIG_HID_KK_UPGRADE
150 case 0x32: samsung_kbd_mouse_map_key_clear(KEY_KBDILLUMTOGGLE); break;
151 case 0x64: samsung_kbd_mouse_map_key_clear(KEY_BACKSLASH); break;
152#else
153 case 0x32: samsung_kbd_mouse_map_key_clear(KEY_BACKSLASH); break;
154 case 0x64: samsung_kbd_mouse_map_key_clear(KEY_102ND); break;
155#endif
156 /* Only for BR keyboard */
157 case 0x87: samsung_kbd_mouse_map_key_clear(KEY_RO); break;
158 default:
159 return 0;
160 }
161 }
162
163 if (HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)) {
164 switch (usage->hid & HID_USAGE) {
165 /* report 2 */
166 /* MENU */
167 case 0x040: samsung_kbd_mouse_map_key_clear(KEY_MENU); break;
168 case 0x18a: samsung_kbd_mouse_map_key_clear(KEY_MAIL); break;
169 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
170 case 0x19e: samsung_kbd_mouse_map_key_clear(KEY_SCREENLOCK); break;
171 case 0x221: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
172 case 0x223: samsung_kbd_mouse_map_key_clear(KEY_HOMEPAGE); break;
173 /* RECENTAPPS */
174 case 0x301: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY1); break;
175 /* APPLICATION */
176 case 0x302: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY2); break;
177 /* Voice search */
178 case 0x305: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY4); break;
179 /* QPANEL on/off */
180 case 0x306: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY5); break;
181 /* SIP on/off */
182 case 0x307: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY3); break;
183 /* LANG */
184 case 0x308: samsung_kbd_mouse_map_key_clear(KEY_LANGUAGE); break;
185 case 0x30a: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSDOWN); break;
186 case 0x30b: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSUP); break;
187 default:
188 return 0;
189 }
190 }
191
192 return 1;
193}
194
195static int samsung_gamepad_input_mapping(struct hid_device *hdev,
196 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
197 unsigned long **bit, int *max)
198{
199 if (!(HID_UP_BUTTON == (usage->hid & HID_USAGE_PAGE) ||
200 HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)))
201 return 0;
202
203 dbg_hid("samsung wireless gamepad input mapping event [0x%x], %ld, %ld, [0x%x]\n",
204 usage->hid & HID_USAGE, hi->input->evbit[0], hi->input->absbit[0], usage->hid & HID_USAGE_PAGE);
205
206 if (HID_UP_BUTTON == (usage->hid & HID_USAGE_PAGE)) {
207 switch(usage->hid & HID_USAGE) {
208 case 0x01: samsung_kbd_mouse_map_key_clear(BTN_A); break;
209 case 0x02: samsung_kbd_mouse_map_key_clear(BTN_B); break;
210 case 0x03: samsung_kbd_mouse_map_key_clear(BTN_C); break;
211 case 0x04: samsung_kbd_mouse_map_key_clear(BTN_X); break;
212 case 0x05: samsung_kbd_mouse_map_key_clear(BTN_Y); break;
213 case 0x06: samsung_kbd_mouse_map_key_clear(BTN_Z); break;
214 case 0x07: samsung_kbd_mouse_map_key_clear(BTN_TL); break;
215 case 0x08: samsung_kbd_mouse_map_key_clear(BTN_TR); break;
216 case 0x09: samsung_kbd_mouse_map_key_clear(BTN_TL2); break;
217 case 0x0a: samsung_kbd_mouse_map_key_clear(BTN_TR2); break;
218 case 0x0b: samsung_kbd_mouse_map_key_clear(BTN_SELECT); break;
219 case 0x0c: samsung_kbd_mouse_map_key_clear(BTN_START); break;
220 case 0x0d: samsung_kbd_mouse_map_key_clear(BTN_MODE); break;
221 case 0x0e: samsung_kbd_mouse_map_key_clear(BTN_THUMBL); break;
222 case 0x0f: samsung_kbd_mouse_map_key_clear(BTN_THUMBR); break;
223 case 0x10: samsung_kbd_mouse_map_key_clear(BTN_GAME); break;
224 default:
225 return 0;
226 }
227 }
228
229 if (HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)) {
230 switch (usage->hid & HID_USAGE) {
231 case 0x040: samsung_kbd_mouse_map_key_clear(KEY_MENU); break;
232 case 0x223: samsung_kbd_mouse_map_key_clear(KEY_HOMEPAGE); break;
233 case 0x224: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
234
235 /* Screen Capture */
236 case 0x303: samsung_kbd_mouse_map_key_clear(KEY_SYSRQ); break;
237
238 default:
239 return 0;
240 }
241 }
242
243 return 1;
244}
245
246static int samsung_actionmouse_input_mapping(struct hid_device *hdev,
247 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
248 unsigned long **bit, int *max)
249{
250
251 dbg_hid("samsung wireless actionmouse input mapping event [0x%x], [0x%x], %ld, %ld, [0x%x]\n",
252 usage->hid, usage->hid & HID_USAGE, hi->input->evbit[0], hi->input->absbit[0], usage->hid & HID_USAGE_PAGE);
253
254 if(((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) && ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON))
255 return 0;
256
257 switch (usage->hid & HID_USAGE) {
258 case 0x301: samsung_kbd_mouse_map_key_clear(KEY_RECENT); break;
259 default:
260 return 0;
261 }
262
263 return 1;
264}
265
266static int samsung_universal_kbd_input_mapping(struct hid_device *hdev,
267 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
268 unsigned long **bit, int *max)
269{
270 if (!(HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE) ||
271 HID_UP_KEYBOARD == (usage->hid & HID_USAGE_PAGE)))
272 return 0;
273
274 dbg_hid("samsung wireless keyboard input mapping event [0x%x]\n",
275 usage->hid & HID_USAGE);
276
277 if (HID_UP_KEYBOARD == (usage->hid & HID_USAGE_PAGE)) {
278 switch (usage->hid & HID_USAGE) {
279 set_bit(EV_REP, hi->input->evbit);
280 /* Only for UK keyboard */
281 /* key found */
282#ifdef CONFIG_HID_KK_UPGRADE
283 case 0x32: samsung_kbd_mouse_map_key_clear(KEY_KBDILLUMTOGGLE); break;
284 case 0x64: samsung_kbd_mouse_map_key_clear(KEY_BACKSLASH); break;
285#else
286 case 0x32: samsung_kbd_mouse_map_key_clear(KEY_BACKSLASH); break;
287 case 0x64: samsung_kbd_mouse_map_key_clear(KEY_102ND); break;
288#endif
289 /* Only for BR keyboard */
290 case 0x87: samsung_kbd_mouse_map_key_clear(KEY_RO); break;
291 default:
292 return 0;
293 }
294 }
295
296 if (HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)) {
297 switch (usage->hid & HID_USAGE) {
298 /* report 2 */
299 /* MENU */
300 case 0x040: samsung_kbd_mouse_map_key_clear(KEY_MENU); break;
301 case 0x18a: samsung_kbd_mouse_map_key_clear(KEY_MAIL); break;
302 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
303 case 0x19e: samsung_kbd_mouse_map_key_clear(KEY_SCREENLOCK); break;
304 case 0x221: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
305 case 0x223: samsung_kbd_mouse_map_key_clear(KEY_HOMEPAGE); break;
306 /* RECENTAPPS */
307 case 0x301: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY1); break;
308 /* APPLICATION */
309 case 0x302: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY2); break;
310 /* Voice search */
311 case 0x305: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY4); break;
312 /* QPANEL on/off */
313 case 0x306: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY5); break;
314 /* SIP on/off */
315 case 0x307: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY3); break;
316 /* LANG */
317 case 0x308: samsung_kbd_mouse_map_key_clear(KEY_LANGUAGE); break;
318 case 0x30a: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSDOWN); break;
319 case 0x070: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSDOWN); break;
320 case 0x30b: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSUP); break;
321 case 0x06f: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSUP); break;
322 /* S-Finder */
323 case 0x304: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY7); break;
324 /* Screen Capture */
325 case 0x303: samsung_kbd_mouse_map_key_clear(KEY_SYSRQ); break;
326 /* Multi Window */
327 case 0x309: samsung_kbd_mouse_map_key_clear(BTN_TRIGGER_HAPPY9); break;
328 default:
329 return 0;
330 }
331 }
332
333 return 1;
334}
335
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336static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
337 unsigned int *rsize)
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338{
339 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
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340 rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
341 return rdesc;
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342}
343
344static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
345 struct hid_field *field, struct hid_usage *usage,
346 unsigned long **bit, int *max)
347{
348 int ret = 0;
349
350 if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
351 ret = samsung_kbd_mouse_input_mapping(hdev,
352 hi, field, usage, bit, max);
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353 else if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD == hdev->product)
354 ret = samsung_kbd_input_mapping(hdev,
355 hi, field, usage, bit, max);
356 else if(USB_DEVICE_ID_SAMSUNG_WIRELESS_GAMEPAD == hdev->product)
357 ret = samsung_gamepad_input_mapping(hdev,
358 hi, field, usage, bit, max);
359 else if(USB_DEVICE_ID_SAMSUNG_WIRELESS_ACTIONMOUSE == hdev->product)
360 ret = samsung_actionmouse_input_mapping(hdev,
361 hi, field, usage, bit, max);
362 else if(USB_DEVICE_ID_SAMSUNG_WIRELESS_UNIVERSAL_KBD == hdev->product)
363 ret = samsung_universal_kbd_input_mapping(hdev,
364 hi, field, usage, bit, max);
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365
366 return ret;
367}
368
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369static int samsung_probe(struct hid_device *hdev,
370 const struct hid_device_id *id)
371{
372 int ret;
0810b511 373 unsigned int cmask = HID_CONNECT_DEFAULT;
980a3da6 374
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375 ret = hid_parse(hdev);
376 if (ret) {
4291ee30 377 hid_err(hdev, "parse failed\n");
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378 goto err_free;
379 }
380
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381 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
382 if (hdev->rsize == 184) {
383 /* disable hidinput, force hiddev */
384 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
385 HID_CONNECT_HIDDEV_FORCE;
386 }
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387 }
388
389 ret = hid_hw_start(hdev, cmask);
980a3da6 390 if (ret) {
4291ee30 391 hid_err(hdev, "hw start failed\n");
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392 goto err_free;
393 }
394
395 return 0;
396err_free:
397 return ret;
398}
399
400static const struct hid_device_id samsung_devices[] = {
401 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
b355850b 402 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
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403 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SAMSUNG_ELECTRONICS, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD) },
404 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SAMSUNG_ELECTRONICS, USB_DEVICE_ID_SAMSUNG_WIRELESS_GAMEPAD) },
405 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SAMSUNG_ELECTRONICS, USB_DEVICE_ID_SAMSUNG_WIRELESS_ACTIONMOUSE) },
406 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SAMSUNG_ELECTRONICS, USB_DEVICE_ID_SAMSUNG_WIRELESS_UNIVERSAL_KBD) },
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407 { }
408};
409MODULE_DEVICE_TABLE(hid, samsung_devices);
410
411static struct hid_driver samsung_driver = {
412 .name = "samsung",
413 .id_table = samsung_devices,
414 .report_fixup = samsung_report_fixup,
b355850b 415 .input_mapping = samsung_input_mapping,
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416 .probe = samsung_probe,
417};
f425458e 418module_hid_driver(samsung_driver);
980a3da6 419
980a3da6 420MODULE_LICENSE("GPL");