1 /* 2 * USB device quirk handling logic and table 3 * 4 * Copyright (c) 2007 Oliver Neukum 5 * Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation, version 2. 10 * 11 * 12 */ 13 14 #include <linux/usb.h> 15 #include <linux/usb/quirks.h> 16 #include "usb.h" 17 18 /* List of quirky USB devices. Please keep this list ordered by: 19 * 1) Vendor ID 20 * 2) Product ID 21 * 3) Class ID 22 * 23 * as we want specific devices to be overridden first, and only after that, any 24 * class specific quirks. 25 * 26 * Right now the logic aborts if it finds a valid device in the table, we might 27 * want to change that in the future if it turns out that a whole class of 28 * devices is broken... 29 */ 30 static const struct usb_device_id usb_quirk_list[] = { 31 /* CBM - Flash disk */ 32 { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, 33 /* HP 5300/5370C scanner */ 34 { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 }, 35 36 /* INTEL VALUE SSD */ 37 { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, 38 39 /* M-Systems Flash Disk Pioneers */ 40 { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME }, 41 42 /* Philips PSC805 audio device */ 43 { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME }, 44 45 /* SKYMEDI USB_DRIVE */ 46 { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME }, 47 48 { } /* terminating entry must be last */ 49 }; 50 51 static const struct usb_device_id *find_id(struct usb_device *udev) 52 { 53 const struct usb_device_id *id = usb_quirk_list; 54 55 for (; id->idVendor || id->bDeviceClass || id->bInterfaceClass || 56 id->driver_info; id++) { 57 if (usb_match_device(udev, id)) 58 return id; 59 } 60 return NULL; 61 } 62 63 /* 64 * Detect any quirks the device has, and do any housekeeping for it if needed. 65 */ 66 void usb_detect_quirks(struct usb_device *udev) 67 { 68 const struct usb_device_id *id = usb_quirk_list; 69 70 id = find_id(udev); 71 if (id) 72 udev->quirks = (u32)(id->driver_info); 73 if (udev->quirks) 74 dev_dbg(&udev->dev, "USB quirks for this device: %x\n", 75 udev->quirks); 76 77 /* By default, disable autosuspend for all non-hubs */ 78 #ifdef CONFIG_USB_SUSPEND 79 if (udev->descriptor.bDeviceClass != USB_CLASS_HUB) 80 udev->autosuspend_disabled = 1; 81 #endif 82 } 83