Lines Matching full:acpi
4 ACPI CA Debug Output
7 The ACPI CA can generate debug output. This document describes how to use this
13 The ACPI CA debug output is globally enabled by CONFIG_ACPI_DEBUG. If this
20 you're interested in. At boot-time, use the acpi.debug_layer and
21 acpi.debug_level kernel command line options. After boot, you can use the
22 debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
29 specific part of the ACPI interpreter. To build the debug_layer bitmask, look
30 for the "#define _COMPONENT" in an ACPI source file.
32 You can set the debug_layer mask at boot-time using the acpi.debug_layer
34 to /sys/module/acpi/parameters/debug_layer.
36 The possible components are defined in include/acpi/acoutput.h.
38 Reading /sys/module/acpi/parameters/debug_layer shows the supported mask values::
63 The ACPI interpreter uses several different levels, but the Linux
64 ACPI core and ACPI drivers generally only use ACPI_LV_INFO.
66 You can set the debug_level mask at boot-time using the acpi.debug_level
68 to /sys/module/acpi/parameters/debug_level.
70 The possible levels are defined in include/acpi/acoutput.h. Reading
71 /sys/module/acpi/parameters/debug_level shows the supported mask values,
106 For example, drivers/acpi/acpica/evxfevnt.c contains this::
110 ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n"));
112 To turn on this message, set the ACPI_EVENTS bit in acpi.debug_layer
113 and the ACPI_LV_INIT bit in acpi.debug_level. (The ACPI_DEBUG_PRINT
120 acpi.debug_layer=0xffffffff acpi.debug_level=0x2
122 Enable all ACPI hardware-related messages::
124 acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
128 # echo 0x4 > /sys/module/acpi/parameters/debug_level
132 # cat /sys/module/acpi/parameters/debug_layer