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| author | Len Brown <len.brown@intel.com> | 2007-11-15 01:53:21 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-11-19 18:25:56 +0100 |
| commit | b4d2730a0dda91a43c81a02f5225f5d536cabb09 (patch) | |
| tree | de9f29b56bfb0545b00a62c22c4800b770da84c0 /Documentation | |
| parent | ACPI: add control method tracing support (diff) | |
| download | linux-b4d2730a0dda91a43c81a02f5225f5d536cabb09.tar.xz linux-b4d2730a0dda91a43c81a02f5225f5d536cabb09.zip | |
ACPI: document method tracing hooks
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/00-INDEX | 3 | ||||
| -rw-r--r-- | Documentation/acpi/method-tracing.txt | 26 |
2 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 299615d821ac..161edbcf905e 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -14,6 +14,7 @@ Following translations are available on the WWW: - this file. ABI/ - info on kernel <-> userspace ABI and relative interface stability. + BUG-HUNTING - brute force method of doing binary search of patches to find bug. Changes @@ -66,6 +67,8 @@ VGA-softcursor.txt - how to change your VGA cursor from a blinking underscore. accounting/ - documentation on accounting and taskstats. +acpi/ + - info on ACPI-specific hooks in the kernel. aoe/ - description of AoE (ATA over Ethernet) along with config examples. applying-patches.txt 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". |