linux-kernel - [PATCH v4 03/16] rpmsg: add short description of the IOCTL defined in UAPI.

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Message-ID: <20210217132905.1485-4-arnaud.pouliquen@foss.st.com>
Date:   Wed, 17 Feb 2021 14:28:52 +0100
From:   Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Andy Gross <agross@...nel.org>
CC:     <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-msm@...r.kernel.org>, <arnaud.pouliquen@...s.st.com>
Subject: [PATCH v4 03/16] rpmsg: add short description of the IOCTL defined in UAPI.

Add a description of the IOCTL and provide information on the default
value of the source and destination addresses.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
---
 include/uapi/linux/rpmsg.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/rpmsg.h b/include/uapi/linux/rpmsg.h
index 5e00748da319..f5ca8740f3fb 100644
--- a/include/uapi/linux/rpmsg.h
+++ b/include/uapi/linux/rpmsg.h
@@ -14,8 +14,8 @@
 /**
  * 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];
@@ -23,7 +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