Input: unified force feedback support for memoryless devices

Consolidate core implementing memoryless devices in one module; added
support for gain and envelopes and periodic => rumble conversion.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 58223b5d842a..96232313b1b9 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -24,6 +24,20 @@ config INPUT
 
 if INPUT
 
+config INPUT_FF_MEMLESS
+        tristate "Support for memoryless force-feedback devices"
+        default n
+        ---help---
+          Say Y here if you have memoryless force-feedback input device
+          such as Logitech WingMan Force 3D, ThrustMaster FireStorm Dual
+          Power 2, or similar. You will also need to enable hardware-specific
+          driver.
+
+          If unsure, say N.
+
+          To compile this driver as a module, choose M here: the
+          module will be called ff-memless.
+
 comment "Userland interfaces"
 
 config INPUT_MOUSEDEV