[PATCH] USB: usbtouchscreen: unified USB touchscreen driver

A new single driver for various USB touchscreen devices. It currently
supports:
- eGalax TouchKit
- PanJit TouchSet
- 3M/Microtouch
- ITM Touchscreens

Support for the diffent devices can be enabled/disable when CONFIG_EMBEDDED
is set.

Sizes for comparision:
   text    data     bss     dec     hex filename
   2942     724       4    3670     e56 touchkitusb.ko
   2647     660       0    3307     ceb mtouchusb.ko
   2448     628       0    3076     c04 itmtouch.ko
   4145    1012      12    5169    1431 usbtouchscreen.ko

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 39 insertions, 3 deletions

diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig
index 5246b35301d..83b90be7fa0 100644
--- a/drivers/usb/input/Kconfig
+++ b/drivers/usb/input/Kconfig
@@ -200,9 +200,45 @@ config USB_POWERMATE
           To compile this driver as a module, choose M here: the
           module will be called powermate.
 
+config USB_TOUCHSCREEN
+        tristate "USB Touchscreen Driver"
+        depends on USB && INPUT
+        ---help---
+          USB Touchscreen driver for:
+          - eGalax Touchkit USB
+          - PanJit TouchSet USB
+          - 3M MicroTouch USB
+          - ITM
+
+          Have a look at <http://linux.chapter7.ch/touchkit/> for
+          a usage description and the required user-space stuff.
+
+          To compile this driver as a module, choose M here: the
+          module will be called usbtouchscreen.
+
+config USB_TOUCHSCREEN_EGALAX
+        default y
+        bool "eGalax device support" if EMBEDDED
+        depends on USB_TOUCHSCREEN
+
+config USB_TOUCHSCREEN_PANJIT
+        default y
+        bool "PanJit device support" if EMBEDDED
+        depends on USB_TOUCHSCREEN
+
+config USB_TOUCHSCREEN_3M
+        default y
+        bool "3M/Microtouch device support" if EMBEDDED
+        depends on USB_TOUCHSCREEN
+
+config USB_TOUCHSCREEN_ITM
+        default y
+        bool "ITM device support" if EMBEDDED
+        depends on USB_TOUCHSCREEN
+
 config USB_MTOUCH
         tristate "MicroTouch USB Touchscreen Driver"
-        depends on USB && INPUT
+        depends on USB && INPUT && !USB_TOUCHSCREEN_3M
         ---help---
           Say Y here if you want to use a MicroTouch (Now 3M) USB 
           Touchscreen controller.
@@ -214,7 +250,7 @@ config USB_MTOUCH
 
 config USB_ITMTOUCH
         tristate "ITM Touch USB Touchscreen Driver"
-        depends on USB && INPUT
+        depends on USB && INPUT && !USB_TOUCHSCREEN_ITM
         ---help---
           Say Y here if you want to use a ITM Touch USB
           Touchscreen controller.
@@ -226,7 +262,7 @@ config USB_ITMTOUCH
 
 config USB_EGALAX
         tristate "eGalax TouchKit USB Touchscreen Driver"
-        depends on USB && INPUT
+        depends on USB && INPUT && !USB_TOUCHSCREEN_EGALAX
         ---help---
           Say Y here if you want to use a eGalax TouchKit USB
           Touchscreen controller.