1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 7ef172c2a1d6..f688c214be0c 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"