1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Asus Notebooks WMI hotkey driver
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
16 #include <linux/dmi.h>
17 #include <linux/i8042.h>
21 #define ASUS_NB_WMI_FILE "asus-nb-wmi"
24 MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
25 MODULE_LICENSE("GPL");
27 #define ASUS_NB_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
29 MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);
32 * WAPF defines the behavior of the Fn+Fx wlan key
33 * The significance of values is yet to be found, but
35 * Bit | Bluetooth | WLAN
36 * 0 | Hardware | Hardware
37 * 1 | Hardware | Software
38 * 4 | Software | Software
41 module_param(wapf, uint, 0444);
42 MODULE_PARM_DESC(wapf, "WAPF value");
44 static int tablet_mode_sw = -1;
45 module_param(tablet_mode_sw, uint, 0444);
46 MODULE_PARM_DESC(tablet_mode_sw, "Tablet mode detect: -1:auto 0:disable 1:kbd-dock 2:lid-flip");
48 static struct quirk_entry *quirks;
50 static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
56 if (str & I8042_STR_AUXDATA)
59 if (unlikely(data == 0xe1)) {
62 } else if (unlikely(extended)) {
70 static struct quirk_entry quirk_asus_unknown = {
72 .wmi_backlight_set_devstate = true,
75 static struct quirk_entry quirk_asus_q500a = {
76 .i8042_filter = asus_q500a_i8042_filter,
77 .wmi_backlight_set_devstate = true,
81 * For those machines that need software to control bt/wifi status
82 * and can't adjust brightness through ACPI interface
83 * and have duplicate events(ACPI and WMI) for display toggle
85 static struct quirk_entry quirk_asus_x55u = {
87 .wmi_backlight_power = true,
88 .wmi_backlight_set_devstate = true,
89 .no_display_toggle = true,
92 static struct quirk_entry quirk_asus_wapf4 = {
94 .wmi_backlight_set_devstate = true,
97 static struct quirk_entry quirk_asus_x200ca = {
99 .wmi_backlight_set_devstate = true,
102 static struct quirk_entry quirk_asus_ux303ub = {
103 .wmi_backlight_native = true,
104 .wmi_backlight_set_devstate = true,
107 static struct quirk_entry quirk_asus_x550lb = {
108 .wmi_backlight_set_devstate = true,
112 static struct quirk_entry quirk_asus_forceals = {
113 .wmi_backlight_set_devstate = true,
114 .wmi_force_als_set = true,
117 static struct quirk_entry quirk_asus_use_kbd_dock_devid = {
118 .use_kbd_dock_devid = true,
121 static struct quirk_entry quirk_asus_use_lid_flip_devid = {
122 .wmi_backlight_set_devstate = true,
123 .use_lid_flip_devid = true,
126 static int dmi_matched(const struct dmi_system_id *dmi)
128 pr_info("Identified laptop model '%s'\n", dmi->ident);
129 quirks = dmi->driver_data;
133 static const struct dmi_system_id asus_quirks[] = {
135 .callback = dmi_matched,
136 .ident = "ASUSTeK COMPUTER INC. Q500A",
138 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
139 DMI_MATCH(DMI_PRODUCT_NAME, "Q500A"),
141 .driver_data = &quirk_asus_q500a,
144 .callback = dmi_matched,
145 .ident = "ASUSTeK COMPUTER INC. U32U",
147 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
148 DMI_MATCH(DMI_PRODUCT_NAME, "U32U"),
151 * Note this machine has a Brazos APU, and most Brazos Asus
152 * machines need quirk_asus_x55u / wmi_backlight_power but
153 * here acpi-video seems to work fine for backlight control.
155 .driver_data = &quirk_asus_wapf4,
158 .callback = dmi_matched,
159 .ident = "ASUSTeK COMPUTER INC. X302UA",
161 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
162 DMI_MATCH(DMI_PRODUCT_NAME, "X302UA"),
164 .driver_data = &quirk_asus_wapf4,
167 .callback = dmi_matched,
168 .ident = "ASUSTeK COMPUTER INC. X401U",
170 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
171 DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
173 .driver_data = &quirk_asus_x55u,
176 .callback = dmi_matched,
177 .ident = "ASUSTeK COMPUTER INC. X401A",
179 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
180 DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
182 .driver_data = &quirk_asus_wapf4,
185 .callback = dmi_matched,
186 .ident = "ASUSTeK COMPUTER INC. X401A1",
188 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
189 DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
191 .driver_data = &quirk_asus_wapf4,
194 .callback = dmi_matched,
195 .ident = "ASUSTeK COMPUTER INC. X45U",
197 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
198 DMI_MATCH(DMI_PRODUCT_NAME, "X45U"),
200 .driver_data = &quirk_asus_wapf4,
203 .callback = dmi_matched,
204 .ident = "ASUSTeK COMPUTER INC. X456UA",
206 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
207 DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"),
209 .driver_data = &quirk_asus_wapf4,
212 .callback = dmi_matched,
213 .ident = "ASUSTeK COMPUTER INC. X456UF",
215 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
216 DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"),
218 .driver_data = &quirk_asus_wapf4,
221 .callback = dmi_matched,
222 .ident = "ASUSTeK COMPUTER INC. X501U",
224 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
225 DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
227 .driver_data = &quirk_asus_x55u,
230 .callback = dmi_matched,
231 .ident = "ASUSTeK COMPUTER INC. X501A",
233 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
234 DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
236 .driver_data = &quirk_asus_wapf4,
239 .callback = dmi_matched,
240 .ident = "ASUSTeK COMPUTER INC. X501A1",
242 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
243 DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
245 .driver_data = &quirk_asus_wapf4,
248 .callback = dmi_matched,
249 .ident = "ASUSTeK COMPUTER INC. X550CA",
251 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
252 DMI_MATCH(DMI_PRODUCT_NAME, "X550CA"),
254 .driver_data = &quirk_asus_wapf4,
257 .callback = dmi_matched,
258 .ident = "ASUSTeK COMPUTER INC. X550CC",
260 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
261 DMI_MATCH(DMI_PRODUCT_NAME, "X550CC"),
263 .driver_data = &quirk_asus_wapf4,
266 .callback = dmi_matched,
267 .ident = "ASUSTeK COMPUTER INC. X550CL",
269 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
270 DMI_MATCH(DMI_PRODUCT_NAME, "X550CL"),
272 .driver_data = &quirk_asus_wapf4,
275 .callback = dmi_matched,
276 .ident = "ASUSTeK COMPUTER INC. X550VB",
278 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
279 DMI_MATCH(DMI_PRODUCT_NAME, "X550VB"),
281 .driver_data = &quirk_asus_wapf4,
284 .callback = dmi_matched,
285 .ident = "ASUSTeK COMPUTER INC. X551CA",
287 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
288 DMI_MATCH(DMI_PRODUCT_NAME, "X551CA"),
290 .driver_data = &quirk_asus_wapf4,
293 .callback = dmi_matched,
294 .ident = "ASUSTeK COMPUTER INC. X55A",
296 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
297 DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
299 .driver_data = &quirk_asus_wapf4,
302 .callback = dmi_matched,
303 .ident = "ASUSTeK COMPUTER INC. X55C",
305 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
306 DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
308 .driver_data = &quirk_asus_wapf4,
311 .callback = dmi_matched,
312 .ident = "ASUSTeK COMPUTER INC. X55U",
314 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
315 DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
317 .driver_data = &quirk_asus_x55u,
320 .callback = dmi_matched,
321 .ident = "ASUSTeK COMPUTER INC. X55VD",
323 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
324 DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
326 .driver_data = &quirk_asus_wapf4,
329 .callback = dmi_matched,
330 .ident = "ASUSTeK COMPUTER INC. X75A",
332 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
333 DMI_MATCH(DMI_PRODUCT_NAME, "X75A"),
335 .driver_data = &quirk_asus_wapf4,
338 .callback = dmi_matched,
339 .ident = "ASUSTeK COMPUTER INC. X75VBP",
341 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
342 DMI_MATCH(DMI_PRODUCT_NAME, "X75VBP"),
344 .driver_data = &quirk_asus_wapf4,
347 .callback = dmi_matched,
348 .ident = "ASUSTeK COMPUTER INC. X75VD",
350 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
351 DMI_MATCH(DMI_PRODUCT_NAME, "X75VD"),
353 .driver_data = &quirk_asus_wapf4,
356 .callback = dmi_matched,
357 .ident = "ASUSTeK COMPUTER INC. 1015E",
359 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
360 DMI_MATCH(DMI_PRODUCT_NAME, "1015E"),
362 .driver_data = &quirk_asus_wapf4,
365 .callback = dmi_matched,
366 .ident = "ASUSTeK COMPUTER INC. 1015U",
368 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
369 DMI_MATCH(DMI_PRODUCT_NAME, "1015U"),
371 .driver_data = &quirk_asus_wapf4,
374 .callback = dmi_matched,
375 .ident = "ASUSTeK COMPUTER INC. X200CA",
377 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
378 DMI_MATCH(DMI_PRODUCT_NAME, "X200CA"),
380 .driver_data = &quirk_asus_x200ca,
383 .callback = dmi_matched,
384 .ident = "ASUSTeK COMPUTER INC. UX303UB",
386 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
387 DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"),
389 .driver_data = &quirk_asus_ux303ub,
392 .callback = dmi_matched,
393 .ident = "ASUSTeK COMPUTER INC. UX330UAK",
395 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
396 DMI_MATCH(DMI_PRODUCT_NAME, "UX330UAK"),
398 .driver_data = &quirk_asus_forceals,
401 .callback = dmi_matched,
402 .ident = "ASUSTeK COMPUTER INC. X550LB",
404 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"),
407 .driver_data = &quirk_asus_x550lb,
410 .callback = dmi_matched,
411 .ident = "ASUSTeK COMPUTER INC. UX430UQ",
413 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
414 DMI_MATCH(DMI_PRODUCT_NAME, "UX430UQ"),
416 .driver_data = &quirk_asus_forceals,
419 .callback = dmi_matched,
420 .ident = "ASUSTeK COMPUTER INC. UX430UNR",
422 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
423 DMI_MATCH(DMI_PRODUCT_NAME, "UX430UNR"),
425 .driver_data = &quirk_asus_forceals,
428 .callback = dmi_matched,
429 .ident = "Asus Transformer T100TA / T100HA / T100CHI",
431 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
433 DMI_MATCH(DMI_PRODUCT_NAME, "T100"),
435 .driver_data = &quirk_asus_use_kbd_dock_devid,
438 .callback = dmi_matched,
439 .ident = "Asus Transformer T101HA",
441 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
442 DMI_MATCH(DMI_PRODUCT_NAME, "T101HA"),
444 .driver_data = &quirk_asus_use_kbd_dock_devid,
447 .callback = dmi_matched,
448 .ident = "Asus Transformer T200TA",
450 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
451 DMI_MATCH(DMI_PRODUCT_NAME, "T200TA"),
453 .driver_data = &quirk_asus_use_kbd_dock_devid,
456 .callback = dmi_matched,
457 .ident = "ASUS ZenBook Flip UX360",
459 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
461 DMI_MATCH(DMI_PRODUCT_NAME, "UX360"),
463 .driver_data = &quirk_asus_use_lid_flip_devid,
466 .callback = dmi_matched,
467 .ident = "ASUS TP200s / E205SA",
469 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
470 DMI_MATCH(DMI_PRODUCT_NAME, "E205SA"),
472 .driver_data = &quirk_asus_use_lid_flip_devid,
477 static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
481 quirks = &quirk_asus_unknown;
482 dmi_check_system(asus_quirks);
484 driver->quirks = quirks;
485 driver->panel_power = FB_BLANK_UNBLANK;
487 /* overwrite the wapf setting if the wapf paramater is specified */
493 switch (tablet_mode_sw) {
495 quirks->use_kbd_dock_devid = false;
496 quirks->use_lid_flip_devid = false;
499 quirks->use_kbd_dock_devid = true;
500 quirks->use_lid_flip_devid = false;
503 quirks->use_kbd_dock_devid = false;
504 quirks->use_lid_flip_devid = true;
508 if (quirks->i8042_filter) {
509 ret = i8042_install_filter(quirks->i8042_filter);
511 pr_warn("Unable to install key filter\n");
514 pr_info("Using i8042 filter function for receiving events\n");
518 static const struct key_entry asus_nb_wmi_keymap[] = {
519 { KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
520 { KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
521 { KE_KEY, 0x30, { KEY_VOLUMEUP } },
522 { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
523 { KE_KEY, 0x32, { KEY_MUTE } },
524 { KE_KEY, 0x35, { KEY_SCREENLOCK } },
525 { KE_KEY, 0x38, { KEY_PROG3 } }, /* Armoury Crate */
526 { KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
527 { KE_KEY, 0x41, { KEY_NEXTSONG } },
528 { KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
529 { KE_KEY, 0x45, { KEY_PLAYPAUSE } },
530 { KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
531 { KE_KEY, 0x50, { KEY_EMAIL } },
532 { KE_KEY, 0x51, { KEY_WWW } },
533 { KE_KEY, 0x55, { KEY_CALC } },
534 { KE_IGNORE, 0x57, }, /* Battery mode */
535 { KE_IGNORE, 0x58, }, /* AC mode */
536 { KE_KEY, 0x5C, { KEY_F15 } }, /* Power Gear key */
537 { KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
538 { KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
539 { KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
540 { KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
541 { KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
542 { KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
543 { KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
544 { KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
545 { KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
546 { KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
547 { KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
548 { KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
549 { KE_IGNORE, 0x6E, }, /* Low Battery notification */
550 { KE_KEY, 0x71, { KEY_F13 } }, /* General-purpose button */
551 { KE_IGNORE, 0x79, }, /* Charger type dectection notification */
552 { KE_KEY, 0x7a, { KEY_ALS_TOGGLE } }, /* Ambient Light Sensor Toggle */
553 { KE_KEY, 0x7c, { KEY_MICMUTE } },
554 { KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
555 { KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
556 { KE_KEY, 0x82, { KEY_CAMERA } },
557 { KE_KEY, 0x86, { KEY_PROG1 } }, /* MyASUS Key */
558 { KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
559 { KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
560 { KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
561 { KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
562 { KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
563 { KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
564 { KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
565 { KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
566 { KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
567 { KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
568 { KE_KEY, 0x95, { KEY_MEDIA } },
569 { KE_KEY, 0x99, { KEY_PHONE } }, /* Conflicts with fan mode switch */
570 { KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
571 { KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
572 { KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
573 { KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
574 { KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
575 { KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
576 { KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
577 { KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
578 { KE_KEY, 0xB3, { KEY_PROG4 } }, /* AURA */
579 { KE_KEY, 0xB5, { KEY_CALC } },
580 { KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
581 { KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
582 { KE_IGNORE, 0xC6, }, /* Ambient Light Sensor notification */
583 { KE_KEY, 0xFA, { KEY_PROG2 } }, /* Lid flip action */
587 static struct asus_wmi_driver asus_nb_wmi_driver = {
588 .name = ASUS_NB_WMI_FILE,
589 .owner = THIS_MODULE,
590 .event_guid = ASUS_NB_WMI_EVENT_GUID,
591 .keymap = asus_nb_wmi_keymap,
592 .input_name = "Asus WMI hotkeys",
593 .input_phys = ASUS_NB_WMI_FILE "/input0",
594 .detect_quirks = asus_nb_wmi_quirks,
598 static int __init asus_nb_wmi_init(void)
600 return asus_wmi_register_driver(&asus_nb_wmi_driver);
603 static void __exit asus_nb_wmi_exit(void)
605 asus_wmi_unregister_driver(&asus_nb_wmi_driver);
608 module_init(asus_nb_wmi_init);
609 module_exit(asus_nb_wmi_exit);