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ACPI: Difference between revisions
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The second worst type of coder in the world is the kind that [http://geekz.co.uk/lovesraymond/archive/so-i-married-a-kernel-programmer shows up with a bloody shovel]. The worst kind is a BIOS coder. This tradition has been proudly maintained by a Purple Sash Society of BIOS programmers ("enumerators", "scribes", whatever), primarily illiterate folk from Alberta and [http://dankamongmen.livejournal.com/#entry_298962 Thailand]. Anyway, on to ACPI, a creation of the [http://www.acpi.info/ Advanced Configuration and Power Interface] group. | The second worst type of coder in the world is the kind that [http://geekz.co.uk/lovesraymond/archive/so-i-married-a-kernel-programmer shows up with a bloody shovel]. The worst kind is a BIOS coder. This tradition has been proudly maintained by a Purple Sash Society of BIOS programmers ("enumerators", "scribes", whatever), primarily illiterate folk from Alberta and [http://dankamongmen.livejournal.com/#entry_298962 Thailand]. Anyway, on to ACPI, a creation of the [http://www.acpi.info/ Advanced Configuration and Power Interface] group. | ||
==DSDT== | |||
Differentiated System Description Tables. | |||
==acpidump/acpixtract== | |||
<tt>acpidump</tt> differs subtly and annoyingly between [[Debian]] and [[FreeBSD]]. | <tt>acpidump</tt> differs subtly and annoyingly between [[Debian]] and [[FreeBSD]]. | ||
<pre>[recombinator](0) $ sudo acpidump -o recombinator.acpi | <pre>[recombinator](0) $ sudo acpidump -o recombinator.acpi | ||
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* [http://www.acpi.info/spec30a.htm ACPI 3.0a] specification | * [http://www.acpi.info/spec30a.htm ACPI 3.0a] specification | ||
* [http://www.acpi.info/spec30.htm ACPI 3.0] specification | * [http://www.acpi.info/spec30.htm ACPI 3.0] specification | ||
==See also== | |||
* [http://www.lesswatts.org/projects/acpi/ Linux ACPI] page at http://www.lesswatts.org/projects/acpi/ | |||
* Legacy info regarding [http://acpi.sourceforge.net/dsdt/index.php Linux DSDT] replacement | |||
* Intel's [http://www.intel.com/technology/IAPC/acpi/ ACPI] page, including <tt>iasl</tt>. | |||
Revision as of 09:05, 15 May 2009
Not to be confused with APIC.
The second worst type of coder in the world is the kind that shows up with a bloody shovel. The worst kind is a BIOS coder. This tradition has been proudly maintained by a Purple Sash Society of BIOS programmers ("enumerators", "scribes", whatever), primarily illiterate folk from Alberta and Thailand. Anyway, on to ACPI, a creation of the Advanced Configuration and Power Interface group.
DSDT
Differentiated System Description Tables.
acpidump/acpixtract
acpidump differs subtly and annoyingly between Debian and FreeBSD.
[recombinator](0) $ sudo acpidump -o recombinator.acpi
[recombinator](0) $ acpixtract -l recombinator.acpi
Signature Length OemId OemTableId OemRevision CompilerId CompilerRevision
DSDT 17452 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
FACS 64
FACP 116 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
APIC 120 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
WDDT 64 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
MCFG 60 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
ASF! 166 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
HPET 56 "INTEL " "DG965WH " 000006C1 "MSFT" 01000013
SSDT 524 "INTEL " "CpuPm " 000006C1 "MSFT" 01000013
SSDT 373 "INTEL " "Cpu0Ist " 000006C1 "MSFT" 01000013
SSDT 373 "INTEL " "Cpu1Ist " 000006C1 "MSFT" 01000013
SSDT 373 "INTEL " "Cpu2Ist " 000006C1 "MSFT" 01000013
SSDT 373 "INTEL " "Cpu3Ist " 000006C1 "MSFT" 01000013
RSDT 80 "INTEL " "DG965WH " 000006C1 " " 01000013
RSDP "INTEL "
Found 15 ACPI tables [20060324]
[recombinator](0) $ acpixtract recombinator.acpi
Acpi table [DSDT] - 17452 bytes written to DSDT.dat
Acpi table [SSDT] - 524 bytes written to SSDT1.dat
Acpi table [SSDT] - 373 bytes written to SSDT2.dat
Acpi table [SSDT] - 373 bytes written to SSDT3.dat
Acpi table [SSDT] - 373 bytes written to SSDT4.dat
Acpi table [SSDT] - 373 bytes written to SSDT5.dat
[recombinator](0) $ iasl -d DSDT.dat
Intel ACPI Component Architecture
AML Disassembler version 20061109 [May 15 2007]
Copyright (C) 2000 - 2006 Intel Corporation
Supports ACPI Specification Revision 3.0a
Loading Acpi table from file DSDT.dat
Acpi table [DSDT] successfully installed and loaded
Pass 1 parse of [DSDT]
Pass 2 parse of [DSDT]
Parsing Deferred Opcodes (Methods/Buffers/Packages/Regions)
Parsing completed
Disassembly completed, written to "DSDT.dsl"
[recombinator](0) $
Specifications
The current version is 3.0, amended as 3.0a. Version 4.0 is under development.
See also
- Linux ACPI page at http://www.lesswatts.org/projects/acpi/
- Legacy info regarding Linux DSDT replacement
- Intel's ACPI page, including iasl.
