1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Asus Notebooks WMI hotkey driver 4 * 5 * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com> 6 */ 7 8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 9 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/init.h> 13 #include <linux/input.h> 14 #include <linux/input/sparse-keymap.h> 15 #include <linux/fb.h> 16 #include <linux/dmi.h> 17 #include <linux/i8042.h> 18 19 #include "asus-wmi.h" 20 21 #define ASUS_NB_WMI_FILE "asus-nb-wmi" 22 23 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>"); 24 MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver"); 25 MODULE_LICENSE("GPL"); 26 27 #define ASUS_NB_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C" 28 29 MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID); 30 31 /* 32 * WAPF defines the behavior of the Fn+Fx wlan key 33 * The significance of values is yet to be found, but 34 * most of the time: 35 * Bit | Bluetooth | WLAN 36 * 0 | Hardware | Hardware 37 * 1 | Hardware | Software 38 * 4 | Software | Software 39 */ 40 static int wapf = -1; 41 module_param(wapf, uint, 0444); 42 MODULE_PARM_DESC(wapf, "WAPF value"); 43 44 static struct quirk_entry *quirks; 45 46 static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str, 47 struct serio *port) 48 { 49 static bool extended; 50 bool ret = false; 51 52 if (str & I8042_STR_AUXDATA) 53 return false; 54 55 if (unlikely(data == 0xe1)) { 56 extended = true; 57 ret = true; 58 } else if (unlikely(extended)) { 59 extended = false; 60 ret = true; 61 } 62 63 return ret; 64 } 65 66 static struct quirk_entry quirk_asus_unknown = { 67 .wapf = 0, 68 .wmi_backlight_set_devstate = true, 69 }; 70 71 static struct quirk_entry quirk_asus_q500a = { 72 .i8042_filter = asus_q500a_i8042_filter, 73 .wmi_backlight_set_devstate = true, 74 }; 75 76 /* 77 * For those machines that need software to control bt/wifi status 78 * and can't adjust brightness through ACPI interface 79 * and have duplicate events(ACPI and WMI) for display toggle 80 */ 81 static struct quirk_entry quirk_asus_x55u = { 82 .wapf = 4, 83 .wmi_backlight_power = true, 84 .wmi_backlight_set_devstate = true, 85 .no_display_toggle = true, 86 }; 87 88 static struct quirk_entry quirk_asus_wapf4 = { 89 .wapf = 4, 90 .wmi_backlight_set_devstate = true, 91 }; 92 93 static struct quirk_entry quirk_asus_x200ca = { 94 .wapf = 2, 95 .wmi_backlight_set_devstate = true, 96 }; 97 98 static struct quirk_entry quirk_asus_ux303ub = { 99 .wmi_backlight_native = true, 100 .wmi_backlight_set_devstate = true, 101 }; 102 103 static struct quirk_entry quirk_asus_x550lb = { 104 .wmi_backlight_set_devstate = true, 105 .xusb2pr = 0x01D9, 106 }; 107 108 static struct quirk_entry quirk_asus_forceals = { 109 .wmi_backlight_set_devstate = true, 110 .wmi_force_als_set = true, 111 }; 112 113 static int dmi_matched(const struct dmi_system_id *dmi) 114 { 115 pr_info("Identified laptop model '%s'\n", dmi->ident); 116 quirks = dmi->driver_data; 117 return 1; 118 } 119 120 static const struct dmi_system_id asus_quirks[] = { 121 { 122 .callback = dmi_matched, 123 .ident = "ASUSTeK COMPUTER INC. Q500A", 124 .matches = { 125 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 126 DMI_MATCH(DMI_PRODUCT_NAME, "Q500A"), 127 }, 128 .driver_data = &quirk_asus_q500a, 129 }, 130 { 131 .callback = dmi_matched, 132 .ident = "ASUSTeK COMPUTER INC. U32U", 133 .matches = { 134 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), 135 DMI_MATCH(DMI_PRODUCT_NAME, "U32U"), 136 }, 137 /* 138 * Note this machine has a Brazos APU, and most Brazos Asus 139 * machines need quirk_asus_x55u / wmi_backlight_power but 140 * here acpi-video seems to work fine for backlight control. 141 */ 142 .driver_data = &quirk_asus_wapf4, 143 }, 144 { 145 .callback = dmi_matched, 146 .ident = "ASUSTeK COMPUTER INC. X302UA", 147 .matches = { 148 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 149 DMI_MATCH(DMI_PRODUCT_NAME, "X302UA"), 150 }, 151 .driver_data = &quirk_asus_wapf4, 152 }, 153 { 154 .callback = dmi_matched, 155 .ident = "ASUSTeK COMPUTER INC. X401U", 156 .matches = { 157 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 158 DMI_MATCH(DMI_PRODUCT_NAME, "X401U"), 159 }, 160 .driver_data = &quirk_asus_x55u, 161 }, 162 { 163 .callback = dmi_matched, 164 .ident = "ASUSTeK COMPUTER INC. X401A", 165 .matches = { 166 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 167 DMI_MATCH(DMI_PRODUCT_NAME, "X401A"), 168 }, 169 .driver_data = &quirk_asus_wapf4, 170 }, 171 { 172 .callback = dmi_matched, 173 .ident = "ASUSTeK COMPUTER INC. X401A1", 174 .matches = { 175 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 176 DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"), 177 }, 178 .driver_data = &quirk_asus_wapf4, 179 }, 180 { 181 .callback = dmi_matched, 182 .ident = "ASUSTeK COMPUTER INC. X45U", 183 .matches = { 184 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 185 DMI_MATCH(DMI_PRODUCT_NAME, "X45U"), 186 }, 187 .driver_data = &quirk_asus_wapf4, 188 }, 189 { 190 .callback = dmi_matched, 191 .ident = "ASUSTeK COMPUTER INC. X456UA", 192 .matches = { 193 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 194 DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"), 195 }, 196 .driver_data = &quirk_asus_wapf4, 197 }, 198 { 199 .callback = dmi_matched, 200 .ident = "ASUSTeK COMPUTER INC. X456UF", 201 .matches = { 202 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 203 DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"), 204 }, 205 .driver_data = &quirk_asus_wapf4, 206 }, 207 { 208 .callback = dmi_matched, 209 .ident = "ASUSTeK COMPUTER INC. X501U", 210 .matches = { 211 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 212 DMI_MATCH(DMI_PRODUCT_NAME, "X501U"), 213 }, 214 .driver_data = &quirk_asus_x55u, 215 }, 216 { 217 .callback = dmi_matched, 218 .ident = "ASUSTeK COMPUTER INC. X501A", 219 .matches = { 220 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 221 DMI_MATCH(DMI_PRODUCT_NAME, "X501A"), 222 }, 223 .driver_data = &quirk_asus_wapf4, 224 }, 225 { 226 .callback = dmi_matched, 227 .ident = "ASUSTeK COMPUTER INC. X501A1", 228 .matches = { 229 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 230 DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"), 231 }, 232 .driver_data = &quirk_asus_wapf4, 233 }, 234 { 235 .callback = dmi_matched, 236 .ident = "ASUSTeK COMPUTER INC. X550CA", 237 .matches = { 238 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 239 DMI_MATCH(DMI_PRODUCT_NAME, "X550CA"), 240 }, 241 .driver_data = &quirk_asus_wapf4, 242 }, 243 { 244 .callback = dmi_matched, 245 .ident = "ASUSTeK COMPUTER INC. X550CC", 246 .matches = { 247 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 248 DMI_MATCH(DMI_PRODUCT_NAME, "X550CC"), 249 }, 250 .driver_data = &quirk_asus_wapf4, 251 }, 252 { 253 .callback = dmi_matched, 254 .ident = "ASUSTeK COMPUTER INC. X550CL", 255 .matches = { 256 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 257 DMI_MATCH(DMI_PRODUCT_NAME, "X550CL"), 258 }, 259 .driver_data = &quirk_asus_wapf4, 260 }, 261 { 262 .callback = dmi_matched, 263 .ident = "ASUSTeK COMPUTER INC. X550VB", 264 .matches = { 265 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 266 DMI_MATCH(DMI_PRODUCT_NAME, "X550VB"), 267 }, 268 .driver_data = &quirk_asus_wapf4, 269 }, 270 { 271 .callback = dmi_matched, 272 .ident = "ASUSTeK COMPUTER INC. X551CA", 273 .matches = { 274 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 275 DMI_MATCH(DMI_PRODUCT_NAME, "X551CA"), 276 }, 277 .driver_data = &quirk_asus_wapf4, 278 }, 279 { 280 .callback = dmi_matched, 281 .ident = "ASUSTeK COMPUTER INC. X55A", 282 .matches = { 283 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 284 DMI_MATCH(DMI_PRODUCT_NAME, "X55A"), 285 }, 286 .driver_data = &quirk_asus_wapf4, 287 }, 288 { 289 .callback = dmi_matched, 290 .ident = "ASUSTeK COMPUTER INC. X55C", 291 .matches = { 292 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 293 DMI_MATCH(DMI_PRODUCT_NAME, "X55C"), 294 }, 295 .driver_data = &quirk_asus_wapf4, 296 }, 297 { 298 .callback = dmi_matched, 299 .ident = "ASUSTeK COMPUTER INC. X55U", 300 .matches = { 301 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 302 DMI_MATCH(DMI_PRODUCT_NAME, "X55U"), 303 }, 304 .driver_data = &quirk_asus_x55u, 305 }, 306 { 307 .callback = dmi_matched, 308 .ident = "ASUSTeK COMPUTER INC. X55VD", 309 .matches = { 310 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 311 DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"), 312 }, 313 .driver_data = &quirk_asus_wapf4, 314 }, 315 { 316 .callback = dmi_matched, 317 .ident = "ASUSTeK COMPUTER INC. X75A", 318 .matches = { 319 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 320 DMI_MATCH(DMI_PRODUCT_NAME, "X75A"), 321 }, 322 .driver_data = &quirk_asus_wapf4, 323 }, 324 { 325 .callback = dmi_matched, 326 .ident = "ASUSTeK COMPUTER INC. X75VBP", 327 .matches = { 328 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 329 DMI_MATCH(DMI_PRODUCT_NAME, "X75VBP"), 330 }, 331 .driver_data = &quirk_asus_wapf4, 332 }, 333 { 334 .callback = dmi_matched, 335 .ident = "ASUSTeK COMPUTER INC. X75VD", 336 .matches = { 337 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 338 DMI_MATCH(DMI_PRODUCT_NAME, "X75VD"), 339 }, 340 .driver_data = &quirk_asus_wapf4, 341 }, 342 { 343 .callback = dmi_matched, 344 .ident = "ASUSTeK COMPUTER INC. 1015E", 345 .matches = { 346 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 347 DMI_MATCH(DMI_PRODUCT_NAME, "1015E"), 348 }, 349 .driver_data = &quirk_asus_wapf4, 350 }, 351 { 352 .callback = dmi_matched, 353 .ident = "ASUSTeK COMPUTER INC. 1015U", 354 .matches = { 355 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 356 DMI_MATCH(DMI_PRODUCT_NAME, "1015U"), 357 }, 358 .driver_data = &quirk_asus_wapf4, 359 }, 360 { 361 .callback = dmi_matched, 362 .ident = "ASUSTeK COMPUTER INC. X200CA", 363 .matches = { 364 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 365 DMI_MATCH(DMI_PRODUCT_NAME, "X200CA"), 366 }, 367 .driver_data = &quirk_asus_x200ca, 368 }, 369 { 370 .callback = dmi_matched, 371 .ident = "ASUSTeK COMPUTER INC. UX303UB", 372 .matches = { 373 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 374 DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"), 375 }, 376 .driver_data = &quirk_asus_ux303ub, 377 }, 378 { 379 .callback = dmi_matched, 380 .ident = "ASUSTeK COMPUTER INC. UX330UAK", 381 .matches = { 382 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 383 DMI_MATCH(DMI_PRODUCT_NAME, "UX330UAK"), 384 }, 385 .driver_data = &quirk_asus_forceals, 386 }, 387 { 388 .callback = dmi_matched, 389 .ident = "ASUSTeK COMPUTER INC. X550LB", 390 .matches = { 391 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 392 DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"), 393 }, 394 .driver_data = &quirk_asus_x550lb, 395 }, 396 { 397 .callback = dmi_matched, 398 .ident = "ASUSTeK COMPUTER INC. UX430UQ", 399 .matches = { 400 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 401 DMI_MATCH(DMI_PRODUCT_NAME, "UX430UQ"), 402 }, 403 .driver_data = &quirk_asus_forceals, 404 }, 405 { 406 .callback = dmi_matched, 407 .ident = "ASUSTeK COMPUTER INC. UX430UNR", 408 .matches = { 409 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 410 DMI_MATCH(DMI_PRODUCT_NAME, "UX430UNR"), 411 }, 412 .driver_data = &quirk_asus_forceals, 413 }, 414 {}, 415 }; 416 417 static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver) 418 { 419 int ret; 420 421 quirks = &quirk_asus_unknown; 422 dmi_check_system(asus_quirks); 423 424 driver->quirks = quirks; 425 driver->panel_power = FB_BLANK_UNBLANK; 426 427 /* overwrite the wapf setting if the wapf paramater is specified */ 428 if (wapf != -1) 429 quirks->wapf = wapf; 430 else 431 wapf = quirks->wapf; 432 433 if (quirks->i8042_filter) { 434 ret = i8042_install_filter(quirks->i8042_filter); 435 if (ret) { 436 pr_warn("Unable to install key filter\n"); 437 return; 438 } 439 pr_info("Using i8042 filter function for receiving events\n"); 440 } 441 } 442 443 static const struct key_entry asus_nb_wmi_keymap[] = { 444 { KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } }, 445 { KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } }, 446 { KE_KEY, 0x30, { KEY_VOLUMEUP } }, 447 { KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, 448 { KE_KEY, 0x32, { KEY_MUTE } }, 449 { KE_KEY, 0x35, { KEY_SCREENLOCK } }, 450 { KE_KEY, 0x40, { KEY_PREVIOUSSONG } }, 451 { KE_KEY, 0x41, { KEY_NEXTSONG } }, 452 { KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */ 453 { KE_KEY, 0x45, { KEY_PLAYPAUSE } }, 454 { KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */ 455 { KE_KEY, 0x50, { KEY_EMAIL } }, 456 { KE_KEY, 0x51, { KEY_WWW } }, 457 { KE_KEY, 0x55, { KEY_CALC } }, 458 { KE_IGNORE, 0x57, }, /* Battery mode */ 459 { KE_IGNORE, 0x58, }, /* AC mode */ 460 { KE_KEY, 0x5C, { KEY_F15 } }, /* Power Gear key */ 461 { KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */ 462 { KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */ 463 { KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */ 464 { KE_KEY, 0x60, { KEY_TOUCHPAD_ON } }, 465 { KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */ 466 { KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */ 467 { KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */ 468 { KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */ 469 { KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */ 470 { KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */ 471 { KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */ 472 { KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, 473 { KE_IGNORE, 0x6E, }, /* Low Battery notification */ 474 { KE_KEY, 0x7a, { KEY_ALS_TOGGLE } }, /* Ambient Light Sensor Toggle */ 475 { KE_KEY, 0x7c, { KEY_MICMUTE } }, 476 { KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */ 477 { KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */ 478 { KE_KEY, 0x82, { KEY_CAMERA } }, 479 { KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */ 480 { KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */ 481 { KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */ 482 { KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */ 483 { KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */ 484 { KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */ 485 { KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */ 486 { KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */ 487 { KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */ 488 { KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */ 489 { KE_KEY, 0x95, { KEY_MEDIA } }, 490 { KE_KEY, 0x99, { KEY_PHONE } }, /* Conflicts with fan mode switch */ 491 { KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */ 492 { KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */ 493 { KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */ 494 { KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */ 495 { KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */ 496 { KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */ 497 { KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */ 498 { KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */ 499 { KE_KEY, 0xB5, { KEY_CALC } }, 500 { KE_KEY, 0xC4, { KEY_KBDILLUMUP } }, 501 { KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } }, 502 { KE_IGNORE, 0xC6, }, /* Ambient Light Sensor notification */ 503 { KE_KEY, 0xFA, { KEY_PROG2 } }, /* Lid flip action */ 504 { KE_END, 0}, 505 }; 506 507 static struct asus_wmi_driver asus_nb_wmi_driver = { 508 .name = ASUS_NB_WMI_FILE, 509 .owner = THIS_MODULE, 510 .event_guid = ASUS_NB_WMI_EVENT_GUID, 511 .keymap = asus_nb_wmi_keymap, 512 .input_name = "Asus WMI hotkeys", 513 .input_phys = ASUS_NB_WMI_FILE "/input0", 514 .detect_quirks = asus_nb_wmi_quirks, 515 }; 516 517 518 static int __init asus_nb_wmi_init(void) 519 { 520 return asus_wmi_register_driver(&asus_nb_wmi_driver); 521 } 522 523 static void __exit asus_nb_wmi_exit(void) 524 { 525 asus_wmi_unregister_driver(&asus_nb_wmi_driver); 526 } 527 528 module_init(asus_nb_wmi_init); 529 module_exit(asus_nb_wmi_exit); 530