From 4c4fffc05ca33429a5927f46a66e4569a11c9ad8 Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Mon, 9 Jan 2006 06:45:51 +0000 Subject: Optimize control changes in pvrusb2 when it doesn't really change From: Mike Isely Signed-off-by: Mike Isely --- v4l/ChangeLog | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'v4l') diff --git a/v4l/ChangeLog b/v4l/ChangeLog index 5907ae4ad..2626d66cb 100644 --- a/v4l/ChangeLog +++ b/v4l/ChangeLog @@ -1,3 +1,16 @@ +2006-01-09 06:42 mcisely + + * v4l_experimental/pvrusb2/pvrusb2-hdw.c: + (pvr2_hdw_set_ctl_value_internal): + + - Implement a module option that enables an optimization where + control changes which don't actually change anything are + eliminated. This slightly improves up tuning latency for apps + that like to spit out redundant commands during a frequency + change. (The change to implement this was almost trivial.) + + Signed-off-by: Mike Isely + 2006-01-09 06:33 mcisely * v4l_experimental/pvrusb2/pvrusb2-hdw-internal.h: -- cgit v1.2.3