Commit:     20b4514799ebcfb04b45537e90e421cb73fd0cc9
Parent:     543a956140e1f57331c0e528d2367106057aeca0
Author:     Carlos Corbacho <[EMAIL PROTECTED]>
AuthorDate: Fri Feb 8 00:36:49 2008 -0500
Committer:  Len Brown <[EMAIL PROTECTED]>
CommitDate: Fri Feb 8 00:36:49 2008 -0500

    ACPI: WMI: Improve Kconfig description
    As Pavel Machek has pointed out, the Kconfig entry for WMI is pretty
    Rewrite it so that it explains what ACPI-WMI is, and why anyone
    would want to enable it.
    Many thanks to Ray Lee for ideas on this.
    Signed-off-by: Carlos Corbacho <[EMAIL PROTECTED]>
    CC: Pavel Machek <[EMAIL PROTECTED]>
    Signed-off-by: Len Brown <[EMAIL PROTECTED]>
 drivers/acpi/Kconfig |   19 +++++++++++++++----
 1 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 65da19b..f688c21 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -207,11 +207,22 @@ config ACPI_WMI
        depends on X86
        depends on EXPERIMENTAL
-         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.
-         NOTE: You will need another driver or userspace application on top of
-         this to actually use anything defined in the ACPI-WMI mapper.
+         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.
+         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"
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