config ACPI_WMI
tristate "WMI (EXPERIMENTAL)"
+ depends on X86
depends on EXPERIMENTAL
help
- This driver adds support for the ACPI-WMI mapper device (PNP0C14)
- found on some systems.
+ This driver adds support for the ACPI-WMI (Windows Management
+ Instrumentation) mapper device (PNP0C14) found on some systems.
+
+ ACPI-WMI is a proprietary extension to ACPI to expose parts of the
+ ACPI firmware to userspace - this is done through various vendor
+ defined methods and data blocks in a PNP0C14 device, which are then
+ made available for userspace to call.
+
+ The implementation of this in Linux currently only exposes this to
+ other kernel space drivers.
- NOTE: You will need another driver or userspace application on top of
- this to actually use anything defined in the ACPI-WMI mapper.
+ This driver is a required dependency to build the firmware specific
+ drivers needed on many machines, including Acer and HP laptops.
+
+ It is safe to enable this driver even if your DSDT doesn't define
+ any ACPI-WMI devices.
config ACPI_ASUS
tristate "ASUS/Medion Laptop Extras"
depends on !STANDALONE
default n
help
- This option is to load a custom ACPI DSDT
- If you don't know what that is, say N.
+ This option supports a custom DSDT by linking it into the kernel.
+ See Documentation/acpi/dsdt-override.txt
+
+ If unsure, say N.
config ACPI_CUSTOM_DSDT_FILE
string "Custom DSDT Table file to include"
Enter the full path name to the file which includes the AmlCode
declaration.
+config ACPI_CUSTOM_DSDT_INITRD
+ bool "Read Custom DSDT from initramfs"
+ depends on BLK_DEV_INITRD
+ default n
+ help
+ This option supports a custom DSDT by optionally loading it from initrd.
+ See Documentation/acpi/dsdt-override.txt
+
+ If you are not using this feature now, but may use it later,
+ it is safe to say Y here.
+
config ACPI_BLACKLIST_YEAR
int "Disable ACPI for systems before Jan 1st this year" if X86_32
default 0