[PATCH v2 02/12] firewire: cdev: add new version of ABI to notify time stamp at request/response subaction of transaction

From: Takashi Sakamoto
Date: Thu May 25 2023 - 06:17:37 EST


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@xxxxxxxxxxxxx>
---
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..e3d463b2c288 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 (6.4) - added some event for subactions of asynchronous transaction with time stamp
*/

/**
--
2.39.2