From b4d2730a0dda91a43c81a02f5225f5d536cabb09 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 14 Nov 2007 19:53:21 -0500 Subject: ACPI: document method tracing hooks Signed-off-by: Len Brown --- Documentation/acpi/method-tracing.txt | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/acpi/method-tracing.txt (limited to 'Documentation/acpi') diff --git a/Documentation/acpi/method-tracing.txt b/Documentation/acpi/method-tracing.txt new file mode 100644 index 000000000000..f6efb1ea559a --- /dev/null +++ b/Documentation/acpi/method-tracing.txt @@ -0,0 +1,26 @@ +/sys/module/acpi/parameters/: + +trace_method_name + The AML method name that the user wants to trace + +trace_debug_layer + The temporary debug_layer used when tracing the method. + Using 0xffffffff by default if it is 0. + +trace_debug_level + The temporary debug_level used when tracing the method. + Using 0x00ffffff by default if it is 0. + +trace_state + The status of the tracing feature. + + "enabled" means this feature is enabled + and the AML method is traced every time it's executed. + + "1" means this feature is enabled and the AML method + will only be traced during the next execution. + + "disabled" means this feature is disabled. + Users can enable/disable this debug tracing feature by + "echo string > /sys/module/acpi/parameters/trace_state". + "string" should be one of "enable", "disable" and "1". -- cgit v1.2.2