1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index f1372de4ce79..4875f0149eb4 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -68,6 +68,24 @@ config ACPI_PROCFS
 
           Say N to delete /proc/acpi/ files that have moved to /sys/
 
+config ACPI_PROC_EVENT
+        bool "Deprecated /proc/acpi/event support"
+        depends on PROC_FS
+        default y
+        ---help---
+          A user-space daemon, acpi, typically read /proc/acpi/event
+          and handled all ACPI sub-system generated events.
+
+          These events are now delivered to user-space via
+          either the input layer, or as netlink events.
+
+          This build option enables the old code for legacy
+          user-space implementation.  After some time, this will
+          be moved under CONFIG_ACPI_PROCFS, and then deleted.
+
+          Say Y here to retain the old behaviour.  Say N if your
+          user-space is newer than kernel 2.6.23 (September 2007).
+
 config ACPI_AC
         tristate "AC Adapter"
         depends on X86