Input: add Zhen Hua driver

This is a driver for Zhen Hua PPM-4CH RC transmitter (commonly used in cheap
Ready To Fly RC helicopters by Walkera) which using "Zhen Hua 5-byte protocol"
for using them as a four axis joystick via serial port.  Transmitter connected
to serial port (19200 8N1) sending periodically 5 bytes where first byte is for
synchronization and next four bytes are values of axis.

Signed-off-by: Martin Kebert <gkmarty@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 7c662ee594a3..be5c14a5a0a4 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -193,6 +193,18 @@ config JOYSTICK_TWIDJOY
           To compile this driver as a module, choose M here: the
           module will be called twidjoy.
 
+config JOYSTICK_ZHENHUA
+        tristate "5-byte Zhenhua RC transmitter"
+        select SERIO
+        help
+          Say Y here if you have a Zhen Hua PPM-4CH transmitter which is
+          supplied with a ready to fly micro electric indoor helicopters
+          such as EasyCopter, Lama, MiniCopter, DragonFly or Jabo and want
+          to use it via serial cable as a joystick.
+
+          To compile this driver as a module, choose M here: the
+          module will be called zhenhua.
+
 config JOYSTICK_DB9
         tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
         depends on PARPORT