quirks.c 16 KB

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  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. #include <linux/moduleparam.h>
  9. #include <linux/usb.h>
  10. #include <linux/usb/quirks.h>
  11. #include <linux/usb/hcd.h>
  12. #include "usb.h"
  13. struct quirk_entry {
  14. u16 vid;
  15. u16 pid;
  16. u32 flags;
  17. };
  18. static DEFINE_MUTEX(quirk_mutex);
  19. static struct quirk_entry *quirk_list;
  20. static unsigned int quirk_count;
  21. static char quirks_param[128];
  22. static int quirks_param_set(const char *val, const struct kernel_param *kp)
  23. {
  24. char *p, *field;
  25. u16 vid, pid;
  26. u32 flags;
  27. size_t i;
  28. int err;
  29. err = param_set_copystring(val, kp);
  30. if (err)
  31. return err;
  32. mutex_lock(&quirk_mutex);
  33. if (!*val) {
  34. quirk_count = 0;
  35. kfree(quirk_list);
  36. quirk_list = NULL;
  37. goto unlock;
  38. }
  39. for (quirk_count = 1, i = 0; val[i]; i++)
  40. if (val[i] == ',')
  41. quirk_count++;
  42. if (quirk_list) {
  43. kfree(quirk_list);
  44. quirk_list = NULL;
  45. }
  46. quirk_list = kcalloc(quirk_count, sizeof(struct quirk_entry),
  47. GFP_KERNEL);
  48. if (!quirk_list) {
  49. quirk_count = 0;
  50. mutex_unlock(&quirk_mutex);
  51. return -ENOMEM;
  52. }
  53. for (i = 0, p = (char *)val; p && *p;) {
  54. /* Each entry consists of VID:PID:flags */
  55. field = strsep(&p, ":");
  56. if (!field)
  57. break;
  58. if (kstrtou16(field, 16, &vid))
  59. break;
  60. field = strsep(&p, ":");
  61. if (!field)
  62. break;
  63. if (kstrtou16(field, 16, &pid))
  64. break;
  65. field = strsep(&p, ",");
  66. if (!field || !*field)
  67. break;
  68. /* Collect the flags */
  69. for (flags = 0; *field; field++) {
  70. switch (*field) {
  71. case 'a':
  72. flags |= USB_QUIRK_STRING_FETCH_255;
  73. break;
  74. case 'b':
  75. flags |= USB_QUIRK_RESET_RESUME;
  76. break;
  77. case 'c':
  78. flags |= USB_QUIRK_NO_SET_INTF;
  79. break;
  80. case 'd':
  81. flags |= USB_QUIRK_CONFIG_INTF_STRINGS;
  82. break;
  83. case 'e':
  84. flags |= USB_QUIRK_RESET;
  85. break;
  86. case 'f':
  87. flags |= USB_QUIRK_HONOR_BNUMINTERFACES;
  88. break;
  89. case 'g':
  90. flags |= USB_QUIRK_DELAY_INIT;
  91. break;
  92. case 'h':
  93. flags |= USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL;
  94. break;
  95. case 'i':
  96. flags |= USB_QUIRK_DEVICE_QUALIFIER;
  97. break;
  98. case 'j':
  99. flags |= USB_QUIRK_IGNORE_REMOTE_WAKEUP;
  100. break;
  101. case 'k':
  102. flags |= USB_QUIRK_NO_LPM;
  103. break;
  104. case 'l':
  105. flags |= USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL;
  106. break;
  107. case 'm':
  108. flags |= USB_QUIRK_DISCONNECT_SUSPEND;
  109. break;
  110. case 'n':
  111. flags |= USB_QUIRK_DELAY_CTRL_MSG;
  112. break;
  113. case 'o':
  114. flags |= USB_QUIRK_HUB_SLOW_RESET;
  115. break;
  116. /* Ignore unrecognized flag characters */
  117. }
  118. }
  119. quirk_list[i++] = (struct quirk_entry)
  120. { .vid = vid, .pid = pid, .flags = flags };
  121. }
  122. if (i < quirk_count)
  123. quirk_count = i;
  124. unlock:
  125. mutex_unlock(&quirk_mutex);
  126. return 0;
  127. }
  128. static const struct kernel_param_ops quirks_param_ops = {
  129. .set = quirks_param_set,
  130. .get = param_get_string,
  131. };
  132. static struct kparam_string quirks_param_string = {
  133. .maxlen = sizeof(quirks_param),
  134. .string = quirks_param,
  135. };
  136. device_param_cb(quirks, &quirks_param_ops, &quirks_param_string, 0644);
  137. MODULE_PARM_DESC(quirks, "Add/modify USB quirks by specifying quirks=vendorID:productID:quirks");
  138. /* Lists of quirky USB devices, split in device quirks and interface quirks.
  139. * Device quirks are applied at the very beginning of the enumeration process,
  140. * right after reading the device descriptor. They can thus only match on device
  141. * information.
  142. *
  143. * Interface quirks are applied after reading all the configuration descriptors.
  144. * They can match on both device and interface information.
  145. *
  146. * Note that the DELAY_INIT and HONOR_BNUMINTERFACES quirks do not make sense as
  147. * interface quirks, as they only influence the enumeration process which is run
  148. * before processing the interface quirks.
  149. *
  150. * Please keep the lists ordered by:
  151. * 1) Vendor ID
  152. * 2) Product ID
  153. * 3) Class ID
  154. */
  155. static const struct usb_device_id usb_quirk_list[] = {
  156. /* CBM - Flash disk */
  157. { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
  158. /* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */
  159. { USB_DEVICE(0x0218, 0x0201), .driver_info =
  160. USB_QUIRK_CONFIG_INTF_STRINGS },
  161. /* WORLDE easy key (easykey.25) MIDI controller */
  162. { USB_DEVICE(0x0218, 0x0401), .driver_info =
  163. USB_QUIRK_CONFIG_INTF_STRINGS },
  164. /* HP 5300/5370C scanner */
  165. { USB_DEVICE(0x03f0, 0x0701), .driver_info =
  166. USB_QUIRK_STRING_FETCH_255 },
  167. /* HP v222w 16GB Mini USB Drive */
  168. { USB_DEVICE(0x03f0, 0x3f40), .driver_info = USB_QUIRK_DELAY_INIT },
  169. /* Creative SB Audigy 2 NX */
  170. { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
  171. /* USB3503 */
  172. { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
  173. /* Microsoft Wireless Laser Mouse 6000 Receiver */
  174. { USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },
  175. /* Microsoft LifeCam-VX700 v2.0 */
  176. { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
  177. /* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */
  178. { USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },
  179. /* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */
  180. { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
  181. { USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
  182. { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
  183. { USB_DEVICE(0x046d, 0x085b), .driver_info = USB_QUIRK_DELAY_INIT },
  184. /* Logitech ConferenceCam CC3000e */
  185. { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT },
  186. { USB_DEVICE(0x046d, 0x0848), .driver_info = USB_QUIRK_DELAY_INIT },
  187. /* Logitech PTZ Pro Camera */
  188. { USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT },
  189. /* Logitech Quickcam Fusion */
  190. { USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },
  191. /* Logitech Quickcam Orbit MP */
  192. { USB_DEVICE(0x046d, 0x08c2), .driver_info = USB_QUIRK_RESET_RESUME },
  193. /* Logitech Quickcam Pro for Notebook */
  194. { USB_DEVICE(0x046d, 0x08c3), .driver_info = USB_QUIRK_RESET_RESUME },
  195. /* Logitech Quickcam Pro 5000 */
  196. { USB_DEVICE(0x046d, 0x08c5), .driver_info = USB_QUIRK_RESET_RESUME },
  197. /* Logitech Quickcam OEM Dell Notebook */
  198. { USB_DEVICE(0x046d, 0x08c6), .driver_info = USB_QUIRK_RESET_RESUME },
  199. /* Logitech Quickcam OEM Cisco VT Camera II */
  200. { USB_DEVICE(0x046d, 0x08c7), .driver_info = USB_QUIRK_RESET_RESUME },
  201. /* Logitech Harmony 700-series */
  202. { USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },
  203. /* Philips PSC805 audio device */
  204. { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
  205. /* Plantronic Audio 655 DSP */
  206. { USB_DEVICE(0x047f, 0xc008), .driver_info = USB_QUIRK_RESET_RESUME },
  207. /* Plantronic Audio 648 USB */
  208. { USB_DEVICE(0x047f, 0xc013), .driver_info = USB_QUIRK_RESET_RESUME },
  209. /* Artisman Watchdog Dongle */
  210. { USB_DEVICE(0x04b4, 0x0526), .driver_info =
  211. USB_QUIRK_CONFIG_INTF_STRINGS },
  212. /* Microchip Joss Optical infrared touchboard device */
  213. { USB_DEVICE(0x04d8, 0x000c), .driver_info =
  214. USB_QUIRK_CONFIG_INTF_STRINGS },
  215. /* CarrolTouch 4000U */
  216. { USB_DEVICE(0x04e7, 0x0009), .driver_info = USB_QUIRK_RESET_RESUME },
  217. /* CarrolTouch 4500U */
  218. { USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME },
  219. /* Samsung Android phone modem - ID conflict with SPH-I500 */
  220. { USB_DEVICE(0x04e8, 0x6601), .driver_info =
  221. USB_QUIRK_CONFIG_INTF_STRINGS },
  222. /* Elan Touchscreen */
  223. { USB_DEVICE(0x04f3, 0x0089), .driver_info =
  224. USB_QUIRK_DEVICE_QUALIFIER },
  225. { USB_DEVICE(0x04f3, 0x009b), .driver_info =
  226. USB_QUIRK_DEVICE_QUALIFIER },
  227. { USB_DEVICE(0x04f3, 0x010c), .driver_info =
  228. USB_QUIRK_DEVICE_QUALIFIER },
  229. { USB_DEVICE(0x04f3, 0x0125), .driver_info =
  230. USB_QUIRK_DEVICE_QUALIFIER },
  231. { USB_DEVICE(0x04f3, 0x016f), .driver_info =
  232. USB_QUIRK_DEVICE_QUALIFIER },
  233. { USB_DEVICE(0x04f3, 0x0381), .driver_info =
  234. USB_QUIRK_NO_LPM },
  235. { USB_DEVICE(0x04f3, 0x21b8), .driver_info =
  236. USB_QUIRK_DEVICE_QUALIFIER },
  237. /* Roland SC-8820 */
  238. { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
  239. /* Edirol SD-20 */
  240. { USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
  241. /* Alcor Micro Corp. Hub */
  242. { USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
  243. /* appletouch */
  244. { USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
  245. /* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */
  246. { USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM },
  247. /* ELSA MicroLink 56K */
  248. { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_RESET_RESUME },
  249. /* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */
  250. { USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
  251. /* Avision AV600U */
  252. { USB_DEVICE(0x0638, 0x0a13), .driver_info =
  253. USB_QUIRK_STRING_FETCH_255 },
  254. /* Saitek Cyborg Gold Joystick */
  255. { USB_DEVICE(0x06a3, 0x0006), .driver_info =
  256. USB_QUIRK_CONFIG_INTF_STRINGS },
  257. /* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
  258. { USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
  259. /* Guillemot Webcam Hercules Dualpix Exchange*/
  260. { USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },
  261. /* Midiman M-Audio Keystation 88es */
  262. { USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },
  263. /* SanDisk Ultra Fit and Ultra Flair */
  264. { USB_DEVICE(0x0781, 0x5583), .driver_info = USB_QUIRK_NO_LPM },
  265. { USB_DEVICE(0x0781, 0x5591), .driver_info = USB_QUIRK_NO_LPM },
  266. /* M-Systems Flash Disk Pioneers */
  267. { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
  268. /* Baum Vario Ultra */
  269. { USB_DEVICE(0x0904, 0x6101), .driver_info =
  270. USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
  271. { USB_DEVICE(0x0904, 0x6102), .driver_info =
  272. USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
  273. { USB_DEVICE(0x0904, 0x6103), .driver_info =
  274. USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
  275. /* Keytouch QWERTY Panel keyboard */
  276. { USB_DEVICE(0x0926, 0x3333), .driver_info =
  277. USB_QUIRK_CONFIG_INTF_STRINGS },
  278. /* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
  279. { USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },
  280. /* Broadcom BCM92035DGROM BT dongle */
  281. { USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },
  282. /* MAYA44USB sound device */
  283. { USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },
  284. /* ASUS Base Station(T100) */
  285. { USB_DEVICE(0x0b05, 0x17e0), .driver_info =
  286. USB_QUIRK_IGNORE_REMOTE_WAKEUP },
  287. /* Action Semiconductor flash disk */
  288. { USB_DEVICE(0x10d6, 0x2200), .driver_info =
  289. USB_QUIRK_STRING_FETCH_255 },
  290. /* Huawei 4G LTE module */
  291. { USB_DEVICE(0x12d1, 0x15bb), .driver_info =
  292. USB_QUIRK_DISCONNECT_SUSPEND },
  293. { USB_DEVICE(0x12d1, 0x15c3), .driver_info =
  294. USB_QUIRK_DISCONNECT_SUSPEND },
  295. /* SKYMEDI USB_DRIVE */
  296. { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
  297. /* Razer - Razer Blade Keyboard */
  298. { USB_DEVICE(0x1532, 0x0116), .driver_info =
  299. USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
  300. /* BUILDWIN Photo Frame */
  301. { USB_DEVICE(0x1908, 0x1315), .driver_info =
  302. USB_QUIRK_HONOR_BNUMINTERFACES },
  303. /* Protocol and OTG Electrical Test Device */
  304. { USB_DEVICE(0x1a0a, 0x0200), .driver_info =
  305. USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
  306. /* Terminus Technology Inc. Hub */
  307. { USB_DEVICE(0x1a40, 0x0101), .driver_info = USB_QUIRK_HUB_SLOW_RESET },
  308. /* Corsair K70 RGB */
  309. { USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT },
  310. /* Corsair Strafe */
  311. { USB_DEVICE(0x1b1c, 0x1b15), .driver_info = USB_QUIRK_DELAY_INIT |
  312. USB_QUIRK_DELAY_CTRL_MSG },
  313. /* Corsair Strafe RGB */
  314. { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT |
  315. USB_QUIRK_DELAY_CTRL_MSG },
  316. /* Corsair K70 LUX RGB */
  317. { USB_DEVICE(0x1b1c, 0x1b33), .driver_info = USB_QUIRK_DELAY_INIT },
  318. /* Corsair K70 LUX */
  319. { USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
  320. /* MIDI keyboard WORLDE MINI */
  321. { USB_DEVICE(0x1c75, 0x0204), .driver_info =
  322. USB_QUIRK_CONFIG_INTF_STRINGS },
  323. /* Acer C120 LED Projector */
  324. { USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
  325. /* Blackmagic Design Intensity Shuttle */
  326. { USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
  327. /* Blackmagic Design UltraStudio SDI */
  328. { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
  329. /* Hauppauge HVR-950q */
  330. { USB_DEVICE(0x2040, 0x7200), .driver_info =
  331. USB_QUIRK_CONFIG_INTF_STRINGS },
  332. /* Raydium Touchscreen */
  333. { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM },
  334. { USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM },
  335. /* DJI CineSSD */
  336. { USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },
  337. /* INTEL VALUE SSD */
  338. { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
  339. { } /* terminating entry must be last */
  340. };
  341. static const struct usb_device_id usb_interface_quirk_list[] = {
  342. /* Logitech UVC Cameras */
  343. { USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
  344. .driver_info = USB_QUIRK_RESET_RESUME },
  345. { } /* terminating entry must be last */
  346. };
  347. static const struct usb_device_id usb_amd_resume_quirk_list[] = {
  348. /* Lenovo Mouse with Pixart controller */
  349. { USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },
  350. /* Pixart Mouse */
  351. { USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
  352. { USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
  353. { USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
  354. { USB_DEVICE(0x03f0, 0x2b4a), .driver_info = USB_QUIRK_RESET_RESUME },
  355. /* Logitech Optical Mouse M90/M100 */
  356. { USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
  357. { } /* terminating entry must be last */
  358. };
  359. static bool usb_match_any_interface(struct usb_device *udev,
  360. const struct usb_device_id *id)
  361. {
  362. unsigned int i;
  363. for (i = 0; i < udev->descriptor.bNumConfigurations; ++i) {
  364. struct usb_host_config *cfg = &udev->config[i];
  365. unsigned int j;
  366. for (j = 0; j < cfg->desc.bNumInterfaces; ++j) {
  367. struct usb_interface_cache *cache;
  368. struct usb_host_interface *intf;
  369. cache = cfg->intf_cache[j];
  370. if (cache->num_altsetting == 0)
  371. continue;
  372. intf = &cache->altsetting[0];
  373. if (usb_match_one_id_intf(udev, intf, id))
  374. return true;
  375. }
  376. }
  377. return false;
  378. }
  379. static int usb_amd_resume_quirk(struct usb_device *udev)
  380. {
  381. struct usb_hcd *hcd;
  382. hcd = bus_to_hcd(udev->bus);
  383. /* The device should be attached directly to root hub */
  384. if (udev->level == 1 && hcd->amd_resume_bug == 1)
  385. return 1;
  386. return 0;
  387. }
  388. static u32 usb_detect_static_quirks(struct usb_device *udev,
  389. const struct usb_device_id *id)
  390. {
  391. u32 quirks = 0;
  392. for (; id->match_flags; id++) {
  393. if (!usb_match_device(udev, id))
  394. continue;
  395. if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_INFO) &&
  396. !usb_match_any_interface(udev, id))
  397. continue;
  398. quirks |= (u32)(id->driver_info);
  399. }
  400. return quirks;
  401. }
  402. static u32 usb_detect_dynamic_quirks(struct usb_device *udev)
  403. {
  404. u16 vid = le16_to_cpu(udev->descriptor.idVendor);
  405. u16 pid = le16_to_cpu(udev->descriptor.idProduct);
  406. int i, flags = 0;
  407. mutex_lock(&quirk_mutex);
  408. for (i = 0; i < quirk_count; i++) {
  409. if (vid == quirk_list[i].vid && pid == quirk_list[i].pid) {
  410. flags = quirk_list[i].flags;
  411. break;
  412. }
  413. }
  414. mutex_unlock(&quirk_mutex);
  415. return flags;
  416. }
  417. /*
  418. * Detect any quirks the device has, and do any housekeeping for it if needed.
  419. */
  420. void usb_detect_quirks(struct usb_device *udev)
  421. {
  422. udev->quirks = usb_detect_static_quirks(udev, usb_quirk_list);
  423. /*
  424. * Pixart-based mice would trigger remote wakeup issue on AMD
  425. * Yangtze chipset, so set them as RESET_RESUME flag.
  426. */
  427. if (usb_amd_resume_quirk(udev))
  428. udev->quirks |= usb_detect_static_quirks(udev,
  429. usb_amd_resume_quirk_list);
  430. udev->quirks ^= usb_detect_dynamic_quirks(udev);
  431. if (udev->quirks)
  432. dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
  433. udev->quirks);
  434. #ifdef CONFIG_USB_DEFAULT_PERSIST
  435. if (!(udev->quirks & USB_QUIRK_RESET))
  436. udev->persist_enabled = 1;
  437. #else
  438. /* Hubs are automatically enabled for USB-PERSIST */
  439. if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
  440. udev->persist_enabled = 1;
  441. #endif /* CONFIG_USB_DEFAULT_PERSIST */
  442. }
  443. void usb_detect_interface_quirks(struct usb_device *udev)
  444. {
  445. u32 quirks;
  446. quirks = usb_detect_static_quirks(udev, usb_interface_quirk_list);
  447. if (quirks == 0)
  448. return;
  449. dev_dbg(&udev->dev, "USB interface quirks for this device: %x\n",
  450. quirks);
  451. udev->quirks |= quirks;
  452. }
  453. void usb_release_quirk_list(void)
  454. {
  455. mutex_lock(&quirk_mutex);
  456. kfree(quirk_list);
  457. quirk_list = NULL;
  458. mutex_unlock(&quirk_mutex);
  459. }