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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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36e56a3458
This revised patch (as713b) moves a few routines among source files in usbcore. Some driver-related code in usb.c (claiming interfaces and matching IDs) is moved to driver.c, where it belongs. Also the usb_generic stuff in driver.c is moved to a new source file: generic.c. (That's the reason for revising the patch.) Although not very big now, it will get bigger in a later patch. None of the code has been changed; it has only been re-arranged. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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* drivers/usb/generic.c - generic driver for USB devices (not interfaces)
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*
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* (C) Copyright 2005 Greg Kroah-Hartman <gregkh@suse.de>
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*
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* based on drivers/usb/usb.c which had the following copyrights:
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* (C) Copyright Linus Torvalds 1999
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* (C) Copyright Johannes Erdfelt 1999-2001
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* (C) Copyright Andreas Gal 1999
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* (C) Copyright Gregory P. Smith 1999
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* (C) Copyright Deti Fliegl 1999 (new USB architecture)
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* (C) Copyright Randy Dunlap 2000
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* (C) Copyright David Brownell 2000-2004
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* (C) Copyright Yggdrasil Computing, Inc. 2000
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* (usb_device_id matching changes by Adam J. Richter)
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* (C) Copyright Greg Kroah-Hartman 2002-2003
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*
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*/
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#include <linux/config.h>
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#include <linux/usb.h>
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#include "usb.h"
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static int generic_probe(struct device *dev)
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{
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return 0;
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}
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static int generic_remove(struct device *dev)
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{
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struct usb_device *udev = to_usb_device(dev);
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/* if this is only an unbind, not a physical disconnect, then
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* unconfigure the device */
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if (udev->state == USB_STATE_CONFIGURED)
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usb_set_configuration(udev, 0);
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/* in case the call failed or the device was suspended */
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if (udev->state >= USB_STATE_CONFIGURED)
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usb_disable_device(udev, 0);
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return 0;
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}
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struct device_driver usb_generic_driver = {
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.owner = THIS_MODULE,
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.name = "usb",
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.bus = &usb_bus_type,
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.probe = generic_probe,
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.remove = generic_remove,
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};
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/* Fun hack to determine if the struct device is a
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* usb device or a usb interface. */
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int usb_generic_driver_data;
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