FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/usb_fdt_support.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause
      *
      * Copyright (c) 2019 Ian Lepore <ian@FreeBSD.org>
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _USB_FDT_SUPPORT_H_
    #define _USB_FDT_SUPPORT_H_
    
    struct usb_device;
    struct usb_ether;
    
    /*
     * Get the device's MAC address from the FDT data.  Fills in ue->ue_eaddr and
     * returns 0 on success, otherwise leaves ue_eaddr untouched and returns
     * non-zero.  This first attempts to get the address from the "mac-address"
     * property, and if that's not valid it tries the "local-mac-address" property;
     * this matches the linux interpretation of the precedence of those properties.
     */
    int usb_fdt_get_mac_addr(device_t dev, struct usb_ether* ue);
    
    /* Get the FDT node for dev.  Returns -1 if dev is not in the FDT data. */
    phandle_t usb_fdt_get_node(device_t dev, struct usb_device* udev);
    
    #endif

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