forked from luck/tmp_suning_uos_patched
8bb54ab573
This patch (as732) adds a usb_device_driver structure, for representing drivers that manage an entire USB device as opposed to just an interface. Support routines like usb_register_device_driver, usb_deregister_device_driver, usb_probe_device, and usb_unbind_device are also added. Unlike an earlier version of this patch, the new code is type-safe. To accomplish this, the existing struct driver embedded in struct usb_driver had to be wrapped in an intermediate wrapper. This enables the core to tell at runtime whether a particular struct driver belongs to a device driver or to an interface driver. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
45 lines
1.2 KiB
C
45 lines
1.2 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 usb_device *udev)
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{
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return 0;
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}
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static void generic_disconnect(struct usb_device *udev)
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{
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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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}
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struct usb_device_driver usb_generic_driver = {
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.name = "usb",
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.probe = generic_probe,
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.disconnect = generic_disconnect,
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};
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