1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * USB device quirk handling logic and table
4 *
5 * Copyright (c) 2007 Oliver Neukum
6 * Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
7 */
8
9 #include <linux/moduleparam.h>
10 #include <linux/usb.h>
11 #include <linux/usb/quirks.h>
12 #include <linux/usb/hcd.h>
13 #include "usb.h"
14
15 struct quirk_entry {
16 u16 vid;
17 u16 pid;
18 u32 flags;
19 };
20
21 static DEFINE_MUTEX(quirk_mutex);
22
23 static struct quirk_entry *quirk_list;
24 static unsigned int quirk_count;
25
26 static char quirks_param[128];
27
quirks_param_set(const char * val,const struct kernel_param * kp)28 static int quirks_param_set(const char *val, const struct kernel_param *kp)
29 {
30 char *p, *field;
31 u16 vid, pid;
32 u32 flags;
33 size_t i;
34 int err;
35
36 err = param_set_copystring(val, kp);
37 if (err)
38 return err;
39
40 mutex_lock(&quirk_mutex);
41
42 if (!*val) {
43 quirk_count = 0;
44 kfree(quirk_list);
45 quirk_list = NULL;
46 goto unlock;
47 }
48
49 for (quirk_count = 1, i = 0; val[i]; i++)
50 if (val[i] == ',')
51 quirk_count++;
52
53 if (quirk_list) {
54 kfree(quirk_list);
55 quirk_list = NULL;
56 }
57
58 quirk_list = kcalloc(quirk_count, sizeof(struct quirk_entry),
59 GFP_KERNEL);
60 if (!quirk_list) {
61 quirk_count = 0;
62 mutex_unlock(&quirk_mutex);
63 return -ENOMEM;
64 }
65
66 for (i = 0, p = (char *)val; p && *p;) {
67 /* Each entry consists of VID:PID:flags */
68 field = strsep(&p, ":");
69 if (!field)
70 break;
71
72 if (kstrtou16(field, 16, &vid))
73 break;
74
75 field = strsep(&p, ":");
76 if (!field)
77 break;
78
79 if (kstrtou16(field, 16, &pid))
80 break;
81
82 field = strsep(&p, ",");
83 if (!field || !*field)
84 break;
85
86 /* Collect the flags */
87 for (flags = 0; *field; field++) {
88 switch (*field) {
89 case 'a':
90 flags |= USB_QUIRK_STRING_FETCH_255;
91 break;
92 case 'b':
93 flags |= USB_QUIRK_RESET_RESUME;
94 break;
95 case 'c':
96 flags |= USB_QUIRK_NO_SET_INTF;
97 break;
98 case 'd':
99 flags |= USB_QUIRK_CONFIG_INTF_STRINGS;
100 break;
101 case 'e':
102 flags |= USB_QUIRK_RESET;
103 break;
104 case 'f':
105 flags |= USB_QUIRK_HONOR_BNUMINTERFACES;
106 break;
107 case 'g':
108 flags |= USB_QUIRK_DELAY_INIT;
109 break;
110 case 'h':
111 flags |= USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL;
112 break;
113 case 'i':
114 flags |= USB_QUIRK_DEVICE_QUALIFIER;
115 break;
116 case 'j':
117 flags |= USB_QUIRK_IGNORE_REMOTE_WAKEUP;
118 break;
119 case 'k':
120 flags |= USB_QUIRK_NO_LPM;
121 break;
122 case 'l':
123 flags |= USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL;
124 break;
125 case 'm':
126 flags |= USB_QUIRK_DISCONNECT_SUSPEND;
127 break;
128 case 'n':
129 flags |= USB_QUIRK_DELAY_CTRL_MSG;
130 break;
131 /* Ignore unrecognized flag characters */
132 }
133 }
134
135 quirk_list[i++] = (struct quirk_entry)
136 { .vid = vid, .pid = pid, .flags = flags };
137 }
138
139 if (i < quirk_count)
140 quirk_count = i;
141
142 unlock:
143 mutex_unlock(&quirk_mutex);
144
145 return 0;
146 }
147
148 static const struct kernel_param_ops quirks_param_ops = {
149 .set = quirks_param_set,
150 .get = param_get_string,
151 };
152
153 static struct kparam_string quirks_param_string = {
154 .maxlen = sizeof(quirks_param),
155 .string = quirks_param,
156 };
157
158 device_param_cb(quirks, &quirks_param_ops, &quirks_param_string, 0644);
159 MODULE_PARM_DESC(quirks, "Add/modify USB quirks by specifying quirks=vendorID:productID:quirks");
160
161 /* Lists of quirky USB devices, split in device quirks and interface quirks.
162 * Device quirks are applied at the very beginning of the enumeration process,
163 * right after reading the device descriptor. They can thus only match on device
164 * information.
165 *
166 * Interface quirks are applied after reading all the configuration descriptors.
167 * They can match on both device and interface information.
168 *
169 * Note that the DELAY_INIT and HONOR_BNUMINTERFACES quirks do not make sense as
170 * interface quirks, as they only influence the enumeration process which is run
171 * before processing the interface quirks.
172 *
173 * Please keep the lists ordered by:
174 * 1) Vendor ID
175 * 2) Product ID
176 * 3) Class ID
177 */
178 static const struct usb_device_id usb_quirk_list[] = {
179 /* CBM - Flash disk */
180 { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
181
182 /* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */
183 { USB_DEVICE(0x0218, 0x0201), .driver_info =
184 USB_QUIRK_CONFIG_INTF_STRINGS },
185
186 /* WORLDE easy key (easykey.25) MIDI controller */
187 { USB_DEVICE(0x0218, 0x0401), .driver_info =
188 USB_QUIRK_CONFIG_INTF_STRINGS },
189
190 /* HP 5300/5370C scanner */
191 { USB_DEVICE(0x03f0, 0x0701), .driver_info =
192 USB_QUIRK_STRING_FETCH_255 },
193
194 /* HP v222w 16GB Mini USB Drive */
195 { USB_DEVICE(0x03f0, 0x3f40), .driver_info = USB_QUIRK_DELAY_INIT },
196
197 /* Creative SB Audigy 2 NX */
198 { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
199
200 /* USB3503 */
201 { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
202
203 /* Microsoft Wireless Laser Mouse 6000 Receiver */
204 { USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },
205
206 /* Microsoft LifeCam-VX700 v2.0 */
207 { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
208
209 /* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */
210 { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
211 { USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
212 { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
213 { USB_DEVICE(0x046d, 0x085b), .driver_info = USB_QUIRK_DELAY_INIT },
214
215 /* Logitech ConferenceCam CC3000e */
216 { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT },
217 { USB_DEVICE(0x046d, 0x0848), .driver_info = USB_QUIRK_DELAY_INIT },
218
219 /* Logitech PTZ Pro Camera */
220 { USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT },
221
222 /* Logitech Quickcam Fusion */
223 { USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },
224
225 /* Logitech Quickcam Orbit MP */
226 { USB_DEVICE(0x046d, 0x08c2), .driver_info = USB_QUIRK_RESET_RESUME },
227
228 /* Logitech Quickcam Pro for Notebook */
229 { USB_DEVICE(0x046d, 0x08c3), .driver_info = USB_QUIRK_RESET_RESUME },
230
231 /* Logitech Quickcam Pro 5000 */
232 { USB_DEVICE(0x046d, 0x08c5), .driver_info = USB_QUIRK_RESET_RESUME },
233
234 /* Logitech Quickcam OEM Dell Notebook */
235 { USB_DEVICE(0x046d, 0x08c6), .driver_info = USB_QUIRK_RESET_RESUME },
236
237 /* Logitech Quickcam OEM Cisco VT Camera II */
238 { USB_DEVICE(0x046d, 0x08c7), .driver_info = USB_QUIRK_RESET_RESUME },
239
240 /* Logitech Harmony 700-series */
241 { USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },
242
243 /* Philips PSC805 audio device */
244 { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
245
246 /* Plantronic Audio 655 DSP */
247 { USB_DEVICE(0x047f, 0xc008), .driver_info = USB_QUIRK_RESET_RESUME },
248
249 /* Plantronic Audio 648 USB */
250 { USB_DEVICE(0x047f, 0xc013), .driver_info = USB_QUIRK_RESET_RESUME },
251
252 /* Artisman Watchdog Dongle */
253 { USB_DEVICE(0x04b4, 0x0526), .driver_info =
254 USB_QUIRK_CONFIG_INTF_STRINGS },
255
256 /* Microchip Joss Optical infrared touchboard device */
257 { USB_DEVICE(0x04d8, 0x000c), .driver_info =
258 USB_QUIRK_CONFIG_INTF_STRINGS },
259
260 /* CarrolTouch 4000U */
261 { USB_DEVICE(0x04e7, 0x0009), .driver_info = USB_QUIRK_RESET_RESUME },
262
263 /* CarrolTouch 4500U */
264 { USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME },
265
266 /* Samsung Android phone modem - ID conflict with SPH-I500 */
267 { USB_DEVICE(0x04e8, 0x6601), .driver_info =
268 USB_QUIRK_CONFIG_INTF_STRINGS },
269
270 /* Elan Touchscreen */
271 { USB_DEVICE(0x04f3, 0x0089), .driver_info =
272 USB_QUIRK_DEVICE_QUALIFIER },
273
274 { USB_DEVICE(0x04f3, 0x009b), .driver_info =
275 USB_QUIRK_DEVICE_QUALIFIER },
276
277 { USB_DEVICE(0x04f3, 0x010c), .driver_info =
278 USB_QUIRK_DEVICE_QUALIFIER },
279
280 { USB_DEVICE(0x04f3, 0x0125), .driver_info =
281 USB_QUIRK_DEVICE_QUALIFIER },
282
283 { USB_DEVICE(0x04f3, 0x016f), .driver_info =
284 USB_QUIRK_DEVICE_QUALIFIER },
285
286 { USB_DEVICE(0x04f3, 0x0381), .driver_info =
287 USB_QUIRK_NO_LPM },
288
289 { USB_DEVICE(0x04f3, 0x21b8), .driver_info =
290 USB_QUIRK_DEVICE_QUALIFIER },
291
292 /* Roland SC-8820 */
293 { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
294
295 /* Edirol SD-20 */
296 { USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
297
298 /* Alcor Micro Corp. Hub */
299 { USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
300
301 /* appletouch */
302 { USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
303
304 /* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */
305 { USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM },
306
307 /* ELSA MicroLink 56K */
308 { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_RESET_RESUME },
309
310 /* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */
311 { USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
312
313 /* Avision AV600U */
314 { USB_DEVICE(0x0638, 0x0a13), .driver_info =
315 USB_QUIRK_STRING_FETCH_255 },
316
317 /* Saitek Cyborg Gold Joystick */
318 { USB_DEVICE(0x06a3, 0x0006), .driver_info =
319 USB_QUIRK_CONFIG_INTF_STRINGS },
320
321 /* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
322 { USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
323
324 /* Guillemot Webcam Hercules Dualpix Exchange*/
325 { USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },
326
327 /* Midiman M-Audio Keystation 88es */
328 { USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },
329
330 /* M-Systems Flash Disk Pioneers */
331 { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
332
333 /* Baum Vario Ultra */
334 { USB_DEVICE(0x0904, 0x6101), .driver_info =
335 USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
336 { USB_DEVICE(0x0904, 0x6102), .driver_info =
337 USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
338 { USB_DEVICE(0x0904, 0x6103), .driver_info =
339 USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
340
341 /* Keytouch QWERTY Panel keyboard */
342 { USB_DEVICE(0x0926, 0x3333), .driver_info =
343 USB_QUIRK_CONFIG_INTF_STRINGS },
344
345 /* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
346 { USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },
347
348 /* Broadcom BCM92035DGROM BT dongle */
349 { USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },
350
351 /* MAYA44USB sound device */
352 { USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },
353
354 /* ASUS Base Station(T100) */
355 { USB_DEVICE(0x0b05, 0x17e0), .driver_info =
356 USB_QUIRK_IGNORE_REMOTE_WAKEUP },
357
358 /* Action Semiconductor flash disk */
359 { USB_DEVICE(0x10d6, 0x2200), .driver_info =
360 USB_QUIRK_STRING_FETCH_255 },
361
362 /* Huawei 4G LTE module */
363 { USB_DEVICE(0x12d1, 0x15bb), .driver_info =
364 USB_QUIRK_DISCONNECT_SUSPEND },
365 { USB_DEVICE(0x12d1, 0x15c3), .driver_info =
366 USB_QUIRK_DISCONNECT_SUSPEND },
367
368 /* SKYMEDI USB_DRIVE */
369 { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
370
371 /* Razer - Razer Blade Keyboard */
372 { USB_DEVICE(0x1532, 0x0116), .driver_info =
373 USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
374
375 /* BUILDWIN Photo Frame */
376 { USB_DEVICE(0x1908, 0x1315), .driver_info =
377 USB_QUIRK_HONOR_BNUMINTERFACES },
378
379 /* Protocol and OTG Electrical Test Device */
380 { USB_DEVICE(0x1a0a, 0x0200), .driver_info =
381 USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
382
383 /* Corsair K70 RGB */
384 { USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT },
385
386 /* Corsair Strafe */
387 { USB_DEVICE(0x1b1c, 0x1b15), .driver_info = USB_QUIRK_DELAY_INIT |
388 USB_QUIRK_DELAY_CTRL_MSG },
389
390 /* Corsair Strafe RGB */
391 { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT |
392 USB_QUIRK_DELAY_CTRL_MSG },
393
394 /* Corsair K70 LUX */
395 { USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
396
397 /* MIDI keyboard WORLDE MINI */
398 { USB_DEVICE(0x1c75, 0x0204), .driver_info =
399 USB_QUIRK_CONFIG_INTF_STRINGS },
400
401 /* Acer C120 LED Projector */
402 { USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
403
404 /* Blackmagic Design Intensity Shuttle */
405 { USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
406
407 /* Blackmagic Design UltraStudio SDI */
408 { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
409
410 /* Hauppauge HVR-950q */
411 { USB_DEVICE(0x2040, 0x7200), .driver_info =
412 USB_QUIRK_CONFIG_INTF_STRINGS },
413
414 /* DJI CineSSD */
415 { USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },
416
417 /* INTEL VALUE SSD */
418 { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
419
420 { } /* terminating entry must be last */
421 };
422
423 static const struct usb_device_id usb_interface_quirk_list[] = {
424 /* Logitech UVC Cameras */
425 { USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
426 .driver_info = USB_QUIRK_RESET_RESUME },
427
428 { } /* terminating entry must be last */
429 };
430
431 static const struct usb_device_id usb_amd_resume_quirk_list[] = {
432 /* Lenovo Mouse with Pixart controller */
433 { USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },
434
435 /* Pixart Mouse */
436 { USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
437 { USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
438 { USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
439 { USB_DEVICE(0x03f0, 0x2b4a), .driver_info = USB_QUIRK_RESET_RESUME },
440
441 /* Logitech Optical Mouse M90/M100 */
442 { USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
443
444 { } /* terminating entry must be last */
445 };
446
usb_match_any_interface(struct usb_device * udev,const struct usb_device_id * id)447 static bool usb_match_any_interface(struct usb_device *udev,
448 const struct usb_device_id *id)
449 {
450 unsigned int i;
451
452 for (i = 0; i < udev->descriptor.bNumConfigurations; ++i) {
453 struct usb_host_config *cfg = &udev->config[i];
454 unsigned int j;
455
456 for (j = 0; j < cfg->desc.bNumInterfaces; ++j) {
457 struct usb_interface_cache *cache;
458 struct usb_host_interface *intf;
459
460 cache = cfg->intf_cache[j];
461 if (cache->num_altsetting == 0)
462 continue;
463
464 intf = &cache->altsetting[0];
465 if (usb_match_one_id_intf(udev, intf, id))
466 return true;
467 }
468 }
469
470 return false;
471 }
472
usb_amd_resume_quirk(struct usb_device * udev)473 static int usb_amd_resume_quirk(struct usb_device *udev)
474 {
475 struct usb_hcd *hcd;
476
477 hcd = bus_to_hcd(udev->bus);
478 /* The device should be attached directly to root hub */
479 if (udev->level == 1 && hcd->amd_resume_bug == 1)
480 return 1;
481
482 return 0;
483 }
484
usb_detect_static_quirks(struct usb_device * udev,const struct usb_device_id * id)485 static u32 usb_detect_static_quirks(struct usb_device *udev,
486 const struct usb_device_id *id)
487 {
488 u32 quirks = 0;
489
490 for (; id->match_flags; id++) {
491 if (!usb_match_device(udev, id))
492 continue;
493
494 if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_INFO) &&
495 !usb_match_any_interface(udev, id))
496 continue;
497
498 quirks |= (u32)(id->driver_info);
499 }
500
501 return quirks;
502 }
503
usb_detect_dynamic_quirks(struct usb_device * udev)504 static u32 usb_detect_dynamic_quirks(struct usb_device *udev)
505 {
506 u16 vid = le16_to_cpu(udev->descriptor.idVendor);
507 u16 pid = le16_to_cpu(udev->descriptor.idProduct);
508 int i, flags = 0;
509
510 mutex_lock(&quirk_mutex);
511
512 for (i = 0; i < quirk_count; i++) {
513 if (vid == quirk_list[i].vid && pid == quirk_list[i].pid) {
514 flags = quirk_list[i].flags;
515 break;
516 }
517 }
518
519 mutex_unlock(&quirk_mutex);
520
521 return flags;
522 }
523
524 /*
525 * Detect any quirks the device has, and do any housekeeping for it if needed.
526 */
usb_detect_quirks(struct usb_device * udev)527 void usb_detect_quirks(struct usb_device *udev)
528 {
529 udev->quirks = usb_detect_static_quirks(udev, usb_quirk_list);
530
531 /*
532 * Pixart-based mice would trigger remote wakeup issue on AMD
533 * Yangtze chipset, so set them as RESET_RESUME flag.
534 */
535 if (usb_amd_resume_quirk(udev))
536 udev->quirks |= usb_detect_static_quirks(udev,
537 usb_amd_resume_quirk_list);
538
539 udev->quirks ^= usb_detect_dynamic_quirks(udev);
540
541 if (udev->quirks)
542 dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
543 udev->quirks);
544
545 #ifdef CONFIG_USB_DEFAULT_PERSIST
546 if (!(udev->quirks & USB_QUIRK_RESET))
547 udev->persist_enabled = 1;
548 #else
549 /* Hubs are automatically enabled for USB-PERSIST */
550 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
551 udev->persist_enabled = 1;
552 #endif /* CONFIG_USB_DEFAULT_PERSIST */
553 }
554
usb_detect_interface_quirks(struct usb_device * udev)555 void usb_detect_interface_quirks(struct usb_device *udev)
556 {
557 u32 quirks;
558
559 quirks = usb_detect_static_quirks(udev, usb_interface_quirk_list);
560 if (quirks == 0)
561 return;
562
563 dev_dbg(&udev->dev, "USB interface quirks for this device: %x\n",
564 quirks);
565 udev->quirks |= quirks;
566 }
567
usb_release_quirk_list(void)568 void usb_release_quirk_list(void)
569 {
570 mutex_lock(&quirk_mutex);
571 kfree(quirk_list);
572 quirk_list = NULL;
573 mutex_unlock(&quirk_mutex);
574 }
575
