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Diffstat (limited to 'Documentation/acpi/method-tracing.txt')
| -rw-r--r-- | Documentation/acpi/method-tracing.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/acpi/method-tracing.txt b/Documentation/acpi/method-tracing.txt new file mode 100644 index 00000000000..f6efb1ea559 --- /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". |