libvirt/src/util/hostusb.h
Michal Privoznik 8a34f822e6 qemu: Keep list of USB devices attached to domains
In order to avoid situation where a USB device is
in use by two domains, we must keep a list of already
attached devices like we do for PCI.
2011-12-24 18:12:04 +01:00

72 lines
2.6 KiB
C

/*
* Copyright (C) 2009 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors:
* Daniel P. Berrange <berrange@redhat.com>
* Michal Privoznik <mprivozn@redhat.com>
*/
#ifndef __VIR_USB_H__
# define __VIR_USB_H__
# include "internal.h"
typedef struct _usbDevice usbDevice;
typedef struct _usbDeviceList usbDeviceList;
usbDevice *usbGetDevice(unsigned bus,
unsigned devno);
usbDevice *usbFindDevice(unsigned vendor,
unsigned product);
void usbFreeDevice (usbDevice *dev);
void usbDeviceSetUsedBy(usbDevice *dev, const char *name);
const char *usbDeviceGetUsedBy(usbDevice *dev);
const char *usbDeviceGetName(usbDevice *dev);
unsigned usbDeviceGetBus(usbDevice *dev);
unsigned usbDeviceGetDevno(usbDevice *dev);
/*
* Callback that will be invoked once for each file
* associated with / used for USB host device access.
*
* Should return 0 if successfully processed, or
* -1 to indicate error and abort iteration
*/
typedef int (*usbDeviceFileActor)(usbDevice *dev,
const char *path, void *opaque);
int usbDeviceFileIterate(usbDevice *dev,
usbDeviceFileActor actor,
void *opaque);
usbDeviceList *usbDeviceListNew(void);
void usbDeviceListFree(usbDeviceList *list);
int usbDeviceListAdd(usbDeviceList *list,
usbDevice *dev);
usbDevice * usbDeviceListGet(usbDeviceList *list,
int idx);
int usbDeviceListCount(usbDeviceList *list);
usbDevice * usbDeviceListSteal(usbDeviceList *list,
usbDevice *dev);
void usbDeviceListDel(usbDeviceList *list,
usbDevice *dev);
usbDevice * usbDeviceListFind(usbDeviceList *list,
usbDevice *dev);
#endif /* __VIR_USB_H__ */