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authorJamie Gennis <jgennis@google.com>2012-04-30 12:57:11 -0700
committerJamie Gennis <jgennis@google.com>2012-04-30 12:57:11 -0700
commit6b7adef0ef38f568099eab38d6865f402c92235b (patch)
treea4a58f8be79e259343b3432ade9cafbc5d10b889 /include/hardware/hwcomposer.h
parent5cb1de89a905dd13c858779d73721bbc36cd4be1 (diff)
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hwcomposer: clarify vsync timestamp meaning
This change clarifies the meaning of the HWC vsync timestamp to specify that the timestamp must be relative to the system monotonic clock. Change-Id: I4386ce90511fd5b8f8e988917da637d84d86f026
Diffstat (limited to 'include/hardware/hwcomposer.h')
-rw-r--r--include/hardware/hwcomposer.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/hardware/hwcomposer.h b/include/hardware/hwcomposer.h
index 61ee736..cb8ac9b 100644
--- a/include/hardware/hwcomposer.h
+++ b/include/hardware/hwcomposer.h
@@ -322,8 +322,8 @@ typedef struct hwc_procs {
* received and HWC_EVENT_VSYNC is enabled (see: hwc_event_control).
*
* the "zero" parameter must always be 0.
- * the "timestamp" parameter is the timestamp in nanosecond of when the
- * vsync event happened.
+ * the "timestamp" parameter is the system monotonic clock timestamp in
+ * nanosecond of when the vsync event happened.
*
* vsync() is GUARANTEED TO NOT CALL BACK into the h/w composer HAL.
*