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 #ifndef __LINUX_USB_CDC_H
8 #define __LINUX_USB_CDC_H
9 
10 #include <uapi/linux/usb/cdc.h>
11 
12 /*
13  * inofficial magic numbers
14  */
15 
16 #define CDC_PHONET_MAGIC_NUMBER		0xAB
17 
18 /*
19  * parsing CDC headers
20  */
21 
22 struct usb_cdc_parsed_header {
23 	struct usb_cdc_union_desc *usb_cdc_union_desc;
24 	struct usb_cdc_header_desc *usb_cdc_header_desc;
25 
26 	struct usb_cdc_call_mgmt_descriptor *usb_cdc_call_mgmt_descriptor;
27 	struct usb_cdc_acm_descriptor *usb_cdc_acm_descriptor;
28 	struct usb_cdc_country_functional_desc *usb_cdc_country_functional_desc;
29 	struct usb_cdc_network_terminal_desc *usb_cdc_network_terminal_desc;
30 	struct usb_cdc_ether_desc *usb_cdc_ether_desc;
31 	struct usb_cdc_dmm_desc *usb_cdc_dmm_desc;
32 	struct usb_cdc_mdlm_desc *usb_cdc_mdlm_desc;
33 	struct usb_cdc_mdlm_detail_desc *usb_cdc_mdlm_detail_desc;
34 	struct usb_cdc_obex_desc *usb_cdc_obex_desc;
35 	struct usb_cdc_ncm_desc *usb_cdc_ncm_desc;
36 	struct usb_cdc_mbim_desc *usb_cdc_mbim_desc;
37 	struct usb_cdc_mbim_extended_desc *usb_cdc_mbim_extended_desc;
38 
39 	bool phonet_magic_present;
40 };
41 
42 struct usb_interface;
43 int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
44 				struct usb_interface *intf,
45 				u8 *buffer,
46 				int buflen);
47 
48 #endif /* __LINUX_USB_CDC_H */
49