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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* usbhid-dump - interface list
*
* Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
*/
#ifndef __UHD_IFACE_LIST_H__
#define __UHD_IFACE_LIST_H__
#include <stdint.h>
#include "dev_list.h"
#include "iface.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Check if an interface list is valid.
*
* @param list Interface list to check.
*
* @return True if the interface list is valid, false otherwise.
*/
extern bool uhd_iface_list_valid(const uhd_iface *list);
/**
* Check if an interface list is empty.
*
* @param list Interface list to check.
*
* @return True if the interface list is empty, false otherwise.
*/
static inline bool
uhd_iface_list_empty(const uhd_iface *list)
{
return list == NULL;
}
/**
* Calculate length of an interface list.
*
* @param list The list to calculate length of.
*
* @return The list length.
*/
extern size_t uhd_iface_list_len(const uhd_iface *list);
/**
* Free an interface list.
*
* @param list The interface list to free.
*/
extern void uhd_iface_list_free(uhd_iface *list);
/**
* Iterate over an interface list.
*
* @param _iface Loop interface variable.
* @param _list Interface list to iterate over.
*/
#define UHD_IFACE_LIST_FOR_EACH(_iface, _list) \
for (_iface = _list; _iface != NULL; _iface = _iface->next)
/**
* Fetch a list of HID interfaces from a device list.
*
* @param dev_list The device list to fetch interface list from.
* @param plist Location for the resulting list head; could be NULL.
*
* @return Libusb error code.
*/
extern enum libusb_error uhd_iface_list_new(uhd_dev *dev_list,
uhd_iface **plist);
/**
* Filter an interface list by an interface number.
*
* @param plist The original list head.
* @param number The interface number to match against.
*
* @return The resulting list head.
*/
extern uhd_iface *uhd_iface_list_fltr_by_num(uhd_iface *list,
uint8_t number);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __UHD_IFACE_LIST_H__ */
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