From c40a2c8817e42273a4627c48c884b805475a733f Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 7 Sep 2015 16:05:38 +0200 Subject: CDC: common parser for extra headers CDC drivers all implement their own parser for the extra headers. This patch fixes the code duplication introducing a single common parser in usbnet. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller --- include/linux/usb/cdc.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 include/linux/usb/cdc.h (limited to 'include') diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h new file mode 100644 index 000000000000..cd8f2e1c3bdf --- /dev/null +++ b/include/linux/usb/cdc.h @@ -0,0 +1,47 @@ +/* + * USB CDC common helpers + * + * Copyright (c) 2015 Oliver Neukum + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + */ + +#include + +/* + * inofficial magic numbers + */ + +#define CDC_PHONET_MAGIC_NUMBER 0xAB + +/* + * parsing CDC headers + */ + +struct usb_cdc_parsed_header { + struct usb_cdc_union_desc *usb_cdc_union_desc; + struct usb_cdc_header_desc *usb_cdc_header_desc; + + struct usb_cdc_call_mgmt_descriptor *usb_cdc_call_mgmt_descriptor; + struct usb_cdc_acm_descriptor *usb_cdc_acm_descriptor; + struct usb_cdc_country_functional_desc *usb_cdc_country_functional_desc; + struct usb_cdc_network_terminal_desc *usb_cdc_network_terminal_desc; + struct usb_cdc_ether_desc *usb_cdc_ether_desc; + struct usb_cdc_dmm_desc *usb_cdc_dmm_desc; + struct usb_cdc_mdlm_desc *usb_cdc_mdlm_desc; + struct usb_cdc_mdlm_detail_desc *usb_cdc_mdlm_detail_desc; + struct usb_cdc_obex_desc *usb_cdc_obex_desc; + struct usb_cdc_ncm_desc *usb_cdc_ncm_desc; + struct usb_cdc_mbim_desc *usb_cdc_mbim_desc; + struct usb_cdc_mbim_extended_desc *usb_cdc_mbim_extended_desc; + + bool phonet_magic_present; +}; + + +int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr, + struct usb_interface *intf, + u8 *buffer, + int buflen); -- cgit v1.2.3