[PATCH v3 02/15] rpmsg: move RPMSG_ADDR_ANY in user API and document the API

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Add a short description of the user IO controls. As the RPMSG_ADDR_ANY
is a valid src or dst address, migrate its definition to be
able to add it in description.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
---
 include/linux/rpmsg.h      |  3 +--
 include/uapi/linux/rpmsg.h | 13 +++++++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index a5db828b2420..d97dcd049f18 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -18,8 +18,7 @@
 #include <linux/mutex.h>
 #include <linux/poll.h>
 #include <linux/rpmsg/byteorder.h>
-
-#define RPMSG_ADDR_ANY		0xFFFFFFFF
+#include <uapi/linux/rpmsg.h>
 
 struct rpmsg_device;
 struct rpmsg_endpoint;
diff --git a/include/uapi/linux/rpmsg.h b/include/uapi/linux/rpmsg.h
index e14c6dab4223..f5ca8740f3fb 100644
--- a/include/uapi/linux/rpmsg.h
+++ b/include/uapi/linux/rpmsg.h
@@ -9,11 +9,13 @@
 #include <linux/ioctl.h>
 #include <linux/types.h>
 
+#define RPMSG_ADDR_ANY		0xFFFFFFFF
+
 /**
  * struct rpmsg_endpoint_info - endpoint info representation
  * @name: name of service
- * @src: local address
- * @dst: destination address
+ * @src: local address. To set to RPMSG_ADDR_ANY if not used.
+ * @dst: destination address. To set to RPMSG_ADDR_ANY if not used.
  */
 struct rpmsg_endpoint_info {
 	char name[32];
@@ -21,7 +23,14 @@ struct rpmsg_endpoint_info {
 	__u32 dst;
 };
 
+/**
+ * Instantiate a new rmpsg char device endpoint.
+ */
 #define RPMSG_CREATE_EPT_IOCTL	_IOW(0xb5, 0x1, struct rpmsg_endpoint_info)
+
+/**
+ * Destroy a rpmsg char device endpoint created by the RPMSG_CREATE_EPT_IOCTL.
+ */
 #define RPMSG_DESTROY_EPT_IOCTL	_IO(0xb5, 0x2)
 
 #endif
-- 
2.17.1




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