diff options
authorMathieu Desnoyers <>2007-11-14 16:59:49 -0800
committerLinus Torvalds <>2007-11-14 18:45:40 -0800
commit5f9468cebfdb7b809139e7682d388f9c31297936 (patch)
parent314de8a9e17f70243eacc80d2dd22a5d74b09fce (diff)
Linux Kernel Markers: document format string
Describes the format string standard further: Use of field names before the type specifiers.. Signed-off-by: Mathieu Desnoyers <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/markers.txt b/Documentation/markers.txt
index 295a71bc301e..d9f50a19fa0c 100644
--- a/Documentation/markers.txt
+++ b/Documentation/markers.txt
@@ -35,12 +35,14 @@ In order to use the macro trace_mark, you should include linux/marker.h.
-trace_mark(subsystem_event, "%d %s", someint, somestring);
+trace_mark(subsystem_event, "myint %d mystring %s", someint, somestring);
Where :
- subsystem_event is an identifier unique to your event
- subsystem is the name of your subsystem.
- event is the name of the event to mark.
-- "%d %s" is the formatted string for the serializer.
+- "myint %d mystring %s" is the formatted string for the serializer. "myint" and
+ "mystring" are repectively the field names associated with the first and
+ second parameter.
- someint is an integer.
- somestring is a char pointer.