Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752798AbaFFJNZ (ORCPT ); Fri, 6 Jun 2014 05:13:25 -0400 Received: from mail-wg0-f74.google.com ([74.125.82.74]:35143 "EHLO mail-wg0-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752628AbaFFJNA (ORCPT ); Fri, 6 Jun 2014 05:13:00 -0400 From: Michal Nazarewicz To: Felipe Balbi , Krzysztof Opasiak Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Michal Nazarewicz Subject: [PATCHv2 3/5] usb: gadget: f_fs: add usb_functionfs_descs_head_v2 structure Date: Fri, 6 Jun 2014 11:12:54 +0200 Message-Id: <1402045976-26580-3-git-send-email-mina86@mina86.com> X-Mailer: git-send-email 2.0.0.526.g5318336 In-Reply-To: <1402045976-26580-1-git-send-email-mina86@mina86.com> References: <1402045976-26580-1-git-send-email-mina86@mina86.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The structure can be used with user space tools that use the new functionfs description format, for example as follows: static const struct { struct usb_functionfs_descs_head_v2 header; __le32 fs_count; __le32 hs_count; struct { … } fs_desc; struct { … } hs_desc; } descriptors = { .header = { .magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2), .length = cpu_to_le32(sizeof(descriptors)), .flags = cpu_to_le32(FUNCTIONFS_HAS_FS_DESC | FUNCTIONFS_HAS_HS_DESC) }, .fs_count = cpu_to_le32(X), .fs_desc = { … }, .hs_count = cpu_to_le32(Y), .hs_desc = { … } }; Signed-off-by: Michal Nazarewicz --- include/uapi/linux/usb/functionfs.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h index 24b68c5..2592d86 100644 --- a/include/uapi/linux/usb/functionfs.h +++ b/include/uapi/linux/usb/functionfs.h @@ -33,6 +33,16 @@ struct usb_endpoint_descriptor_no_audio { __u8 bInterval; } __attribute__((packed)); +struct usb_functionfs_descs_head_v2 { + __le32 magic; + __le32 length; + __le32 flags; + /* + * __le32 fs_count, hs_count, fs_count; must be included manually in + * the structure taking flags into consideration. + */ +} __attribute__((packed)); + /* Legacy format, deprecated as of 3.14. */ struct usb_functionfs_descs_head { __le32 magic; -- 2.0.0.526.g5318336 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/