linux-kernel - [PATCH v3 02/12] firewire: cdev: add new version of ABI to notify time stamp at request/response subaction of transaction

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Date:   Mon, 29 May 2023 20:33:56 +0900
From:   Takashi Sakamoto <o-takashi@...amocchi.jp>
To:     linux1394-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATCH v3 02/12] firewire: cdev: add new version of ABI to notify time stamp at request/response subaction of transaction

This commit adds new version of ABI for future new events with time stamp
for request/response subaction of asynchronous transaction to user
space.

Signed-off-by: Takashi Sakamoto <o-takashi@...amocchi.jp>
---
 drivers/firewire/core-cdev.c       | 1 +
 include/uapi/linux/firewire-cdev.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 2c16ee8fd842..88c8b5fac5e5 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -43,6 +43,7 @@
 #define FW_CDEV_VERSION_EVENT_REQUEST2		4
 #define FW_CDEV_VERSION_ALLOCATE_REGION_END	4
 #define FW_CDEV_VERSION_AUTO_FLUSH_ISO_OVERFLOW	5
+#define FW_CDEV_VERSION_EVENT_ASYNC_TSTAMP	6
 
 struct client {
 	u32 version;
diff --git a/include/uapi/linux/firewire-cdev.h b/include/uapi/linux/firewire-cdev.h
index 92be3ea3c6e0..76441eb551e5 100644
--- a/include/uapi/linux/firewire-cdev.h
+++ b/include/uapi/linux/firewire-cdev.h
@@ -457,6 +457,7 @@ union fw_cdev_event {
  *  5  (3.4)     - send %FW_CDEV_EVENT_ISO_INTERRUPT events when needed to
  *                 avoid dropping data
  *               - added %FW_CDEV_IOC_FLUSH_ISO
+ *  6  (6.5)     - added some event for subactions of asynchronous transaction with time stamp
  */
 
 /**
-- 
2.39.2