From 20b4514799ebcfb04b45537e90e421cb73fd0cc9 Mon Sep 17 00:00:00 2001 From: Carlos Corbacho Date: Fri, 8 Feb 2008 00:36:49 -0500 Subject: ACPI: WMI: Improve Kconfig description As Pavel Machek has pointed out, the Kconfig entry for WMI is pretty non-descriptive. 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 CC: Pavel Machek CC: Ray Lee Signed-off-by: Len Brown --- drivers/acpi/Kconfig | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 65da19bd0bee..f688c214be0c 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -207,11 +207,22 @@ config ACPI_WMI 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. - 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" -- cgit v1.2.3