summaryrefslogtreecommitdiffstats
path: root/drivers/acpi/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/Kconfig')
-rw-r--r--drivers/acpi/Kconfig20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 7ef172c..f688c21 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -204,13 +204,25 @@ config ACPI_NUMA
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.
+
+ This driver is a required dependency to build the firmware specific
+ drivers needed on many machines, including Acer and HP laptops.
- NOTE: You will need another driver or userspace application on top of
- this to actually use anything defined in the ACPI-WMI mapper.
+ 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"
OpenPOWER on IntegriCloud