1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
2 /*
3  * This file is provided under a dual BSD/GPLv2 license.  When using or
4  * redistributing this file, you may do so under either license.
5  *
6  * Copyright(c) 2018 Intel Corporation. All rights reserved.
7  */
8 
9 #ifndef __INCLUDE_UAPI_SOUND_SOF_USER_HEADER_H__
10 #define __INCLUDE_UAPI_SOUND_SOF_USER_HEADER_H__
11 
12 #include <linux/types.h>
13 
14 /*
15  * Header for all non IPC ABI data.
16  *
17  * Identifies data type, size and ABI.
18  * Used by any bespoke component data structures or binary blobs.
19  */
20 struct sof_abi_hdr {
21 	__u32 magic;		/**< 'S', 'O', 'F', '\0' */
22 	__u32 type;		/**< component specific type */
23 	__u32 size;		/**< size in bytes of data excl. this struct */
24 	__u32 abi;		/**< SOF ABI version */
25 	__u32 reserved[4];	/**< reserved for future use */
26 	__u32 data[0];		/**< Component data - opaque to core */
27 }  __packed;
28 
29 #endif
30