1// SPDX-License-Identifier: GPL-2.0
2/*
3 * USB CDC common helpers
4 *
5 * Copyright (c) 2015 Oliver Neukum <oneukum@suse.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2 as published by the Free Software Foundation.
10 */
11#ifndef __LINUX_USB_CDC_H
12#define __LINUX_USB_CDC_H
13
14#include <uapi/linux/usb/cdc.h>
15
16/*
17 * inofficial magic numbers
18 */
19
20#define CDC_PHONET_MAGIC_NUMBER 0xAB
21
22/*
23 * parsing CDC headers
24 */
25
26struct usb_cdc_parsed_header {
27 struct usb_cdc_union_desc *usb_cdc_union_desc;
28 struct usb_cdc_header_desc *usb_cdc_header_desc;
29
30 struct usb_cdc_call_mgmt_descriptor *usb_cdc_call_mgmt_descriptor;
31 struct usb_cdc_acm_descriptor *usb_cdc_acm_descriptor;
32 struct usb_cdc_country_functional_desc *usb_cdc_country_functional_desc;
33 struct usb_cdc_network_terminal_desc *usb_cdc_network_terminal_desc;
34 struct usb_cdc_ether_desc *usb_cdc_ether_desc;
35 struct usb_cdc_dmm_desc *usb_cdc_dmm_desc;
36 struct usb_cdc_mdlm_desc *usb_cdc_mdlm_desc;
37 struct usb_cdc_mdlm_detail_desc *usb_cdc_mdlm_detail_desc;
38 struct usb_cdc_obex_desc *usb_cdc_obex_desc;
39 struct usb_cdc_ncm_desc *usb_cdc_ncm_desc;
40 struct usb_cdc_mbim_desc *usb_cdc_mbim_desc;
41 struct usb_cdc_mbim_extended_desc *usb_cdc_mbim_extended_desc;
42
43 bool phonet_magic_present;
44};
45
46struct usb_interface;
47int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
48 struct usb_interface *intf,
49 u8 *buffer,
50 int buflen);
51
52#endif /* __LINUX_USB_CDC_H */
53