HID: new driver for PicoLCD device

Add basic driver for PicoLCD graphics device.
Initially support keypad with input device and provide support
for debugging communication via events file from debugfs.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 71d4c07..138ba6a 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -262,6 +262,24 @@
 	---help---
 	Support for Petalynx Maxter remote control.
 
+config HID_PICOLCD
+	tristate "PicoLCD (graphic version)"
+	depends on USB_HID
+	---help---
+	  This provides support for Minibox PicoLCD devices, currently
+	  only the graphical ones are supported.
+
+	  This includes support for the following device features:
+	  - Keypad
+	  - Switching between Firmware and Flash mode
+	  Features that are not (yet) supported:
+	  - Framebuffer for monochrome 256x64 display
+	  - Backlight control
+	  - Contrast control
+	  - IR
+	  - General purpose outputs
+	  - EEProm / Flash access
+
 config HID_QUANTA
 	tristate "Quanta Optical Touch"
 	depends on USB_HID