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059aff6b98
All USB device lookup functions emit an error when they cannot find the requested device. With this patch, their caller can choose if a missing device is an error or normal condition.
88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/*
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* Copyright (C) 2009 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Daniel P. Berrange <berrange@redhat.com>
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* Michal Privoznik <mprivozn@redhat.com>
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*/
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#ifndef __VIR_USB_H__
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# define __VIR_USB_H__
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# include "internal.h"
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typedef struct _usbDevice usbDevice;
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typedef struct _usbDeviceList usbDeviceList;
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usbDevice *usbGetDevice(unsigned int bus,
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unsigned int devno);
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int usbFindDeviceByBus(unsigned int bus,
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unsigned int devno,
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bool mandatory,
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usbDevice **usb);
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int usbFindDeviceByVendor(unsigned int vendor,
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unsigned int product,
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bool mandatory,
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usbDeviceList **devices);
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int usbFindDevice(unsigned int vendor,
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unsigned int product,
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unsigned int bus,
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unsigned int devno,
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bool mandatory,
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usbDevice **usb);
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void usbFreeDevice (usbDevice *dev);
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void usbDeviceSetUsedBy(usbDevice *dev, const char *name);
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const char *usbDeviceGetUsedBy(usbDevice *dev);
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const char *usbDeviceGetName(usbDevice *dev);
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unsigned int usbDeviceGetBus(usbDevice *dev);
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unsigned int usbDeviceGetDevno(usbDevice *dev);
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/*
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* Callback that will be invoked once for each file
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* associated with / used for USB host device access.
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*
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* Should return 0 if successfully processed, or
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* -1 to indicate error and abort iteration
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*/
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typedef int (*usbDeviceFileActor)(usbDevice *dev,
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const char *path, void *opaque);
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int usbDeviceFileIterate(usbDevice *dev,
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usbDeviceFileActor actor,
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void *opaque);
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usbDeviceList *usbDeviceListNew(void);
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void usbDeviceListFree(usbDeviceList *list);
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int usbDeviceListAdd(usbDeviceList *list,
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usbDevice *dev);
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usbDevice * usbDeviceListGet(usbDeviceList *list,
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int idx);
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int usbDeviceListCount(usbDeviceList *list);
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usbDevice * usbDeviceListSteal(usbDeviceList *list,
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usbDevice *dev);
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void usbDeviceListDel(usbDeviceList *list,
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usbDevice *dev);
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usbDevice * usbDeviceListFind(usbDeviceList *list,
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usbDevice *dev);
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#endif /* __VIR_USB_H__ */
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