From 1df22b4ea9d91b01267fb61c155c31fb65d6b8a0 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Wed, 27 Aug 2014 22:58:45 +0200
Subject: usb: gadget: f_fs: add usb_functionfs_descs_head_v2 structure
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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 <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/uapi/linux/usb/functionfs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include/uapi/linux/usb/functionfs.h')
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 0154b2859fd..3ca03de7c2a 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -32,6 +32,16 @@ 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;
--
cgit v1.2.3-70-g09d2