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Diffstat (limited to 'share/man/man4/acpi.4')
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diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4 index 73a4d74..87b5da1 100644 --- a/share/man/man4/acpi.4 +++ b/share/man/man4/acpi.4 @@ -258,11 +258,43 @@ The object and all of its children will be ignored during the bus/children scan of the namespace. The ACPI CA code will still know about the avoided region. +.Sh OVERRIDING YOUR BIOS BYTECODE +ACPI interprets bytecode named AML, ACPI Machine Language, provided by the BIOS +vendor as a memory image at boot time. Sometimes the AML code contains +a problem that does not appeared in Microsoft implementation. +So we provide a way to override it with your own AML code. +.Pp +In order to load your AML code, +you must edit +.Pa /boot/loader.conf +and +include the following lines. +.Bd -literal -offset indent +acpi_dsdt_load="YES" +acpi_dsdt_name="/boot/acpi_dsdt.aml" #You may change the name. +.Ed +.Pp +In order to prepare your AML code, you will require +.Xr acpidump 8 , +.Xr iasl 1 +in devel/acpicatools port, and some ACPI knowledge. .Sh COMPATIBILITY ACPI is only found/supported on Intel platforms (i386/IA32 and IA64). .Sh SEE ALSO .Xr config 8 , +.Xr loader.conf 5 , +.Xr acpidump 8 , .Xr acpi 9 +.Rs +.%A Compaq Computer Corporation +.%A Intel Corporation +.%A Microsoft Corporation +.%A Phoenix Technologies Ltd. +.%A Toshiba Corporation +.%D July 27 2000 +.%T "Advanced Configuration and Power Interface Specification" +.%O http://acpi.info/spec.htm +.Re .Sh AUTHORS .An -nosplit The ACPI CA subsystem is developed and maintained by |
