drivers/usb/core/quirks.c - kernel/msm-4.9 - Gitiles

 /*
  * USB device quirk handling logic and table
  *
  * Copyright (c) 2007 Oliver Neukum
  * Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 2.
  *
  *
  */

 #include <linux/usb.h>
 #include <linux/usb/quirks.h>
 #include <linux/usb/hcd.h>
 #include "usb.h"

 /* Lists of quirky USB devices, split in device quirks and interface quirks.
  * Device quirks are applied at the very beginning of the enumeration process,
  * right after reading the device descriptor. They can thus only match on device
  * information.
  *
  * Interface quirks are applied after reading all the configuration descriptors.
  * They can match on both device and interface information.
  *
  * Note that the DELAY_INIT and HONOR_BNUMINTERFACES quirks do not make sense as
  * interface quirks, as they only influence the enumeration process which is run
  * before processing the interface quirks.
  *
  * Please keep the lists ordered by:
  * 	1) Vendor ID
  * 	2) Product ID
  * 	3) Class ID
  */
 static const struct usb_device_id usb_quirk_list[] = {
 	/* CBM - Flash disk */
 	{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* HP 5300/5370C scanner */
 	{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },

 	/* Creative SB Audigy 2 NX */
 	{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Microsoft Wireless Laser Mouse 6000 Receiver */
 	{ USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Microsoft LifeCam-VX700 v2.0 */
 	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech HD Pro Webcams C920 and C930e */
 	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
 	{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },

 	/* Logitech Quickcam Fusion */
 	{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Quickcam Orbit MP */
 	{ USB_DEVICE(0x046d, 0x08c2), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Quickcam Pro for Notebook */
 	{ USB_DEVICE(0x046d, 0x08c3), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Quickcam Pro 5000 */
 	{ USB_DEVICE(0x046d, 0x08c5), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Quickcam OEM Dell Notebook */
 	{ USB_DEVICE(0x046d, 0x08c6), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Quickcam OEM Cisco VT Camera II */
 	{ USB_DEVICE(0x046d, 0x08c7), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Harmony 700-series */
 	{ USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },

 	/* Philips PSC805 audio device */
 	{ USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Artisman Watchdog Dongle */
 	{ USB_DEVICE(0x04b4, 0x0526), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },

 	/* Microchip Joss Optical infrared touchboard device */
 	{ USB_DEVICE(0x04d8, 0x000c), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },

 	/* CarrolTouch 4000U */
 	{ USB_DEVICE(0x04e7, 0x0009), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* CarrolTouch 4500U */
 	{ USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Samsung Android phone modem - ID conflict with SPH-I500 */
 	{ USB_DEVICE(0x04e8, 0x6601), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },

 	/* Elan Touchscreen */
 	{ USB_DEVICE(0x04f3, 0x0089), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },

 	{ USB_DEVICE(0x04f3, 0x009b), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },

 	{ USB_DEVICE(0x04f3, 0x010c), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },

 	{ USB_DEVICE(0x04f3, 0x0125), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },

 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },

 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Edirol SD-20 */
 	{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Alcor Micro Corp. Hub */
 	{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Avision AV600U */
 	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
 	  USB_QUIRK_STRING_FETCH_255 },

 	/* Saitek Cyborg Gold Joystick */
 	{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },

 	/* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
 	{ USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Guillemot Webcam Hercules Dualpix Exchange*/
 	{ USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Midiman M-Audio Keystation 88es */
 	{ USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* M-Systems Flash Disk Pioneers */
 	{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Keytouch QWERTY Panel keyboard */
 	{ USB_DEVICE(0x0926, 0x3333), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },

 	/* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
 	{ USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },

 	/* Broadcom BCM92035DGROM BT dongle */
 	{ USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* MAYA44USB sound device */
 	{ USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Action Semiconductor flash disk */
 	{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },

 	/* SKYMEDI USB_DRIVE */
 	{ USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Razer - Razer Blade Keyboard */
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

 	/* BUILDWIN Photo Frame */
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },

 	/* INTEL VALUE SSD */
 	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* USB3503 */
 	{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* ASUS Base Station(T100) */
 	{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
 			USB_QUIRK_IGNORE_REMOTE_WAKEUP },

 	/* Protocol and OTG Electrical Test Device */
 	{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

 	{ }  /* terminating entry must be last */
 };

 static const struct usb_device_id usb_interface_quirk_list[] = {
 	/* Logitech UVC Cameras */
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
 	  .driver_info = USB_QUIRK_RESET_RESUME },

 	{ }  /* terminating entry must be last */
 };

 static const struct usb_device_id usb_amd_resume_quirk_list[] = {
 	/* Lenovo Mouse with Pixart controller */
 	{ USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Pixart Mouse */
 	{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },

 	/* Logitech Optical Mouse M90/M100 */
 	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },

 	{ }  /* terminating entry must be last */
 };

 static bool usb_match_any_interface(struct usb_device *udev,
 				    const struct usb_device_id *id)
 {
 	unsigned int i;

 	for (i = 0; i < udev->descriptor.bNumConfigurations; ++i) {
 		struct usb_host_config *cfg = &udev->config[i];
 		unsigned int j;

 		for (j = 0; j < cfg->desc.bNumInterfaces; ++j) {
 			struct usb_interface_cache *cache;
 			struct usb_host_interface *intf;

 			cache = cfg->intf_cache[j];
 			if (cache->num_altsetting == 0)
 				continue;

 			intf = &cache->altsetting[0];
 			if (usb_match_one_id_intf(udev, intf, id))
 				return true;
 		}
 	}

 	return false;
 }

 static int usb_amd_resume_quirk(struct usb_device *udev)
 {
 	struct usb_hcd *hcd;

 	hcd = bus_to_hcd(udev->bus);
 	/* The device should be attached directly to root hub */
 	if (udev->level == 1 && hcd->amd_resume_bug == 1)
 		return 1;

 	return 0;
 }

 static u32 __usb_detect_quirks(struct usb_device *udev,
 			       const struct usb_device_id *id)
 {
 	u32 quirks = 0;

 	for (; id->match_flags; id++) {
 		if (!usb_match_device(udev, id))
 			continue;

 		if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_INFO) &&
 		    !usb_match_any_interface(udev, id))
 			continue;

 		quirks |= (u32)(id->driver_info);
 	}

 	return quirks;
 }

 /*
  * Detect any quirks the device has, and do any housekeeping for it if needed.
  */
 void usb_detect_quirks(struct usb_device *udev)
 {
 	udev->quirks = __usb_detect_quirks(udev, usb_quirk_list);

 	/*
 	 * Pixart-based mice would trigger remote wakeup issue on AMD
 	 * Yangtze chipset, so set them as RESET_RESUME flag.
 	 */
 	if (usb_amd_resume_quirk(udev))
 		udev->quirks |= __usb_detect_quirks(udev,
 				usb_amd_resume_quirk_list);

 	if (udev->quirks)
 		dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
 			udev->quirks);

 #ifdef CONFIG_USB_DEFAULT_PERSIST
 	if (!(udev->quirks & USB_QUIRK_RESET))
 		udev->persist_enabled = 1;
 #else
 	/* Hubs are automatically enabled for USB-PERSIST */
 	if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
 		udev->persist_enabled = 1;
 #endif	/* CONFIG_USB_DEFAULT_PERSIST */
 }

 void usb_detect_interface_quirks(struct usb_device *udev)
 {
 	u32 quirks;

 	quirks = __usb_detect_quirks(udev, usb_interface_quirk_list);
 	if (quirks == 0)
 		return;

 	dev_dbg(&udev->dev, "USB interface quirks for this device: %x\n",
 		quirks);
 	udev->quirks |= quirks;
 }
	/*
	* USB device quirk handling logic and table
	*
	* Copyright (c) 2007 Oliver Neukum
	* Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the Free
	* Software Foundation, version 2.
	*
	*
	*/

	#include <linux/usb.h>
	#include <linux/usb/quirks.h>
	#include <linux/usb/hcd.h>
	#include "usb.h"

	/* Lists of quirky USB devices, split in device quirks and interface quirks.
	* Device quirks are applied at the very beginning of the enumeration process,
	* right after reading the device descriptor. They can thus only match on device
	* information.
	*
	* Interface quirks are applied after reading all the configuration descriptors.
	* They can match on both device and interface information.
	*
	* Note that the DELAY_INIT and HONOR_BNUMINTERFACES quirks do not make sense as
	* interface quirks, as they only influence the enumeration process which is run
	* before processing the interface quirks.
	*
	* Please keep the lists ordered by:
	* 1) Vendor ID
	* 2) Product ID
	* 3) Class ID
	*/
	static const struct usb_device_id usb_quirk_list[] = {
	/* CBM - Flash disk */
	{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },

	/* HP 5300/5370C scanner */
	{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
	USB_QUIRK_STRING_FETCH_255 },

	/* Creative SB Audigy 2 NX */
	{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Microsoft Wireless Laser Mouse 6000 Receiver */
	{ USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Microsoft LifeCam-VX700 v2.0 */
	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech HD Pro Webcams C920 and C930e */
	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
	{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },

	/* Logitech Quickcam Fusion */
	{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Quickcam Orbit MP */
	{ USB_DEVICE(0x046d, 0x08c2), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Quickcam Pro for Notebook */
	{ USB_DEVICE(0x046d, 0x08c3), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Quickcam Pro 5000 */
	{ USB_DEVICE(0x046d, 0x08c5), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Quickcam OEM Dell Notebook */
	{ USB_DEVICE(0x046d, 0x08c6), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Quickcam OEM Cisco VT Camera II */
	{ USB_DEVICE(0x046d, 0x08c7), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Harmony 700-series */
	{ USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },

	/* Philips PSC805 audio device */
	{ USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Artisman Watchdog Dongle */
	{ USB_DEVICE(0x04b4, 0x0526), .driver_info =
	USB_QUIRK_CONFIG_INTF_STRINGS },

	/* Microchip Joss Optical infrared touchboard device */
	{ USB_DEVICE(0x04d8, 0x000c), .driver_info =
	USB_QUIRK_CONFIG_INTF_STRINGS },

	/* CarrolTouch 4000U */
	{ USB_DEVICE(0x04e7, 0x0009), .driver_info = USB_QUIRK_RESET_RESUME },

	/* CarrolTouch 4500U */
	{ USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Samsung Android phone modem - ID conflict with SPH-I500 */
	{ USB_DEVICE(0x04e8, 0x6601), .driver_info =
	USB_QUIRK_CONFIG_INTF_STRINGS },

	/* Elan Touchscreen */
	{ USB_DEVICE(0x04f3, 0x0089), .driver_info =
	USB_QUIRK_DEVICE_QUALIFIER },

	{ USB_DEVICE(0x04f3, 0x009b), .driver_info =
	USB_QUIRK_DEVICE_QUALIFIER },

	{ USB_DEVICE(0x04f3, 0x010c), .driver_info =
	USB_QUIRK_DEVICE_QUALIFIER },

	{ USB_DEVICE(0x04f3, 0x0125), .driver_info =
	USB_QUIRK_DEVICE_QUALIFIER },

	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
	USB_QUIRK_DEVICE_QUALIFIER },

	/* Roland SC-8820 */
	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Edirol SD-20 */
	{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Alcor Micro Corp. Hub */
	{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },

	/* appletouch */
	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Avision AV600U */
	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
	USB_QUIRK_STRING_FETCH_255 },

	/* Saitek Cyborg Gold Joystick */
	{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
	USB_QUIRK_CONFIG_INTF_STRINGS },

	/* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
	{ USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Guillemot Webcam Hercules Dualpix Exchange*/
	{ USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Midiman M-Audio Keystation 88es */
	{ USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },

	/* M-Systems Flash Disk Pioneers */
	{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Keytouch QWERTY Panel keyboard */
	{ USB_DEVICE(0x0926, 0x3333), .driver_info =
	USB_QUIRK_CONFIG_INTF_STRINGS },

	/* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
	{ USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },

	/* Broadcom BCM92035DGROM BT dongle */
	{ USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },

	/* MAYA44USB sound device */
	{ USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Action Semiconductor flash disk */
	{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
	USB_QUIRK_STRING_FETCH_255 },

	/* SKYMEDI USB_DRIVE */
	{ USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Razer - Razer Blade Keyboard */
	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
	USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

	/* BUILDWIN Photo Frame */
	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
	USB_QUIRK_HONOR_BNUMINTERFACES },

	/* INTEL VALUE SSD */
	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },

	/* USB3503 */
	{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },

	/* ASUS Base Station(T100) */
	{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
	USB_QUIRK_IGNORE_REMOTE_WAKEUP },

	/* Protocol and OTG Electrical Test Device */
	{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
	USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

	{ } /* terminating entry must be last */
	};

	static const struct usb_device_id usb_interface_quirk_list[] = {
	/* Logitech UVC Cameras */
	{ USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
	.driver_info = USB_QUIRK_RESET_RESUME },

	{ } /* terminating entry must be last */
	};

	static const struct usb_device_id usb_amd_resume_quirk_list[] = {
	/* Lenovo Mouse with Pixart controller */
	{ USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Pixart Mouse */
	{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
	{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
	{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },

	/* Logitech Optical Mouse M90/M100 */
	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },

	{ } /* terminating entry must be last */
	};

	static bool usb_match_any_interface(struct usb_device *udev,
	const struct usb_device_id *id)
	{
	unsigned int i;

	for (i = 0; i < udev->descriptor.bNumConfigurations; ++i) {
	struct usb_host_config *cfg = &udev->config[i];
	unsigned int j;

	for (j = 0; j < cfg->desc.bNumInterfaces; ++j) {
	struct usb_interface_cache *cache;
	struct usb_host_interface *intf;

	cache = cfg->intf_cache[j];
	if (cache->num_altsetting == 0)
	continue;

	intf = &cache->altsetting[0];
	if (usb_match_one_id_intf(udev, intf, id))
	return true;
	}
	}

	return false;
	}

	static int usb_amd_resume_quirk(struct usb_device *udev)
	{
	struct usb_hcd *hcd;

	hcd = bus_to_hcd(udev->bus);
	/* The device should be attached directly to root hub */
	if (udev->level == 1 && hcd->amd_resume_bug == 1)
	return 1;

	return 0;
	}

	static u32 __usb_detect_quirks(struct usb_device *udev,
	const struct usb_device_id *id)
	{
	u32 quirks = 0;

	for (; id->match_flags; id++) {
	if (!usb_match_device(udev, id))
	continue;

	if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_INFO) &&
	!usb_match_any_interface(udev, id))
	continue;

	quirks \|= (u32)(id->driver_info);
	}

	return quirks;
	}

	/*
	* Detect any quirks the device has, and do any housekeeping for it if needed.
	*/
	void usb_detect_quirks(struct usb_device *udev)
	{
	udev->quirks = __usb_detect_quirks(udev, usb_quirk_list);

	/*
	* Pixart-based mice would trigger remote wakeup issue on AMD
	* Yangtze chipset, so set them as RESET_RESUME flag.
	*/
	if (usb_amd_resume_quirk(udev))
	udev->quirks \|= __usb_detect_quirks(udev,
	usb_amd_resume_quirk_list);

	if (udev->quirks)
	dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
	udev->quirks);

	#ifdef CONFIG_USB_DEFAULT_PERSIST
	if (!(udev->quirks & USB_QUIRK_RESET))
	udev->persist_enabled = 1;
	#else
	/* Hubs are automatically enabled for USB-PERSIST */
	if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
	udev->persist_enabled = 1;
	#endif /* CONFIG_USB_DEFAULT_PERSIST */
	}

	void usb_detect_interface_quirks(struct usb_device *udev)
	{
	u32 quirks;

	quirks = __usb_detect_quirks(udev, usb_interface_quirk_list);
	if (quirks == 0)
	return;

	dev_dbg(&udev->dev, "USB interface quirks for this device: %x\n",
	quirks);
	udev->quirks \|= quirks;
	}