Lines Matching full:acpi

4 ACPI Debug Output
7 The ACPI CA, the Linux ACPI core, and some ACPI drivers can generate debug
13 ACPI debug output is globally enabled by CONFIG_ACPI_DEBUG.  If this config
21 you're interested in.  At boot-time, use the acpi.debug_layer and
22 acpi.debug_level kernel command line options.  After boot, you can use the
23 debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
30 specific driver or part of the ACPI interpreter.  To build the debug_layer
31 bitmask, look for the "#define _COMPONENT" in an ACPI source file.
33 You can set the debug_layer mask at boot-time using the acpi.debug_layer
35 to /sys/module/acpi/parameters/debug_layer.
37 The possible components are defined in include/acpi/acoutput.h and
38 include/acpi/acpi_drivers.h.  Reading /sys/module/acpi/parameters/debug_layer
78 The ACPI interpreter uses several different levels, but the Linux
79 ACPI core and ACPI drivers generally only use ACPI_LV_INFO.
81 You can set the debug_level mask at boot-time using the acpi.debug_level
83 to /sys/module/acpi/parameters/debug_level.
85 The possible levels are defined in include/acpi/acoutput.h.  Reading
86 /sys/module/acpi/parameters/debug_level shows the supported mask values,
121 For example, drivers/acpi/bus.c contains this::
127 To turn on this message, set the ACPI_BUS_COMPONENT bit in acpi.debug_layer
128 and the ACPI_LV_INFO bit in acpi.debug_level.  (The ACPI_DEBUG_PRINT
135     acpi.debug_layer=0xffffffff acpi.debug_level=0x2
139     acpi.debug_layer=0x400000 acpi.debug_level=0x4
141 Enable all ACPI hardware-related messages::
143     acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
147     # echo 0x4 > /sys/module/acpi/parameters/debug_level
151     # cat /sys/module/acpi/parameters/debug_layer