root/drivers/usb/gadget/function/u_hid.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * u_hid.h
 *
 * Utility definitions for the hid function
 *
 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
 *              http://www.samsung.com
 *
 * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
 */

#ifndef U_HID_H
#define U_HID_H

#include <linux/usb/composite.h>

struct f_hid_opts {
        struct usb_function_instance    func_inst;
        int                             minor;
        unsigned char                   subclass;
        unsigned char                   protocol;
        unsigned char                   no_out_endpoint;
        unsigned short                  report_length;
        unsigned short                  report_desc_length;
        unsigned char                   *report_desc;
        bool                            report_desc_alloc;
        unsigned char                   interval;
        bool                            interval_user_set;

        /*
         * Protect the data form concurrent access by read/write
         * and create symlink/remove symlink.
         */
        struct mutex                    lock;
        int                             refcnt;
};

int ghid_setup(struct usb_gadget *g, int count);
void ghid_cleanup(void);

#endif /* U_HID_H */