linux/drivers/usb/gadget/legacy/ncm.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * ncm.c -- NCM gadget driver
 *
 * Copyright (C) 2010 Nokia Corporation
 * Contact: Yauheni Kaliuta <[email protected]>
 *
 * The driver borrows from ether.c which is:
 *
 * Copyright (C) 2003-2005,2008 David Brownell
 * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
 * Copyright (C) 2008 Nokia Corporation
 */

/* #define DEBUG */
/* #define VERBOSE_DEBUG */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb/composite.h>

#include "u_ether.h"
#include "u_ncm.h"

#define DRIVER_DESC …

/*-------------------------------------------------------------------------*/

/* DO NOT REUSE THESE IDs with a protocol-incompatible driver!!  Ever!!
 * Instead:  allocate your own, using normal USB-IF procedures.
 */

/* Thanks to NetChip Technologies for donating this product ID.
 * It's for devices with only CDC Ethernet configurations.
 */
#define CDC_VENDOR_NUM …
#define CDC_PRODUCT_NUM …

/*-------------------------------------------------------------------------*/
USB_GADGET_COMPOSITE_OPTIONS(…);

USB_ETHERNET_MODULE_PARAMETERS(…);

static struct usb_device_descriptor device_desc = …;

static const struct usb_descriptor_header *otg_desc[2];

/* string IDs are assigned dynamically */
static struct usb_string strings_dev[] = …;

static struct usb_gadget_strings stringtab_dev = …;

static struct usb_gadget_strings *dev_strings[] = …;

static struct usb_function_instance *f_ncm_inst;
static struct usb_function *f_ncm;

/*-------------------------------------------------------------------------*/

static int ncm_do_config(struct usb_configuration *c)
{ … }

static struct usb_configuration ncm_config_driver = …;

/*-------------------------------------------------------------------------*/

static int gncm_bind(struct usb_composite_dev *cdev)
{ … }

static int gncm_unbind(struct usb_composite_dev *cdev)
{ … }

static struct usb_composite_driver ncm_driver = …;

module_usb_composite_driver(…);

MODULE_DESCRIPTION(…);
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;