Input: new driver for SGI O2 volume buttons

This driver adds support for the volume buttons on the front of every
SGI O2 workstation.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 432699d..e33d7cb 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -189,6 +189,16 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called uinput.
 
+config INPUT_SGIO2_BTNS
+	tristate "SGI O2 volume button interface"
+	depends on SGI_IP32
+	select INPUT_POLLDEV
+	help
+	  Say Y here if you want to support SGI O2 volume button interface.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sgio_btns.
+
 config HP_SDC_RTC
 	tristate "HP SDC Real Time Clock"
 	depends on GSC || HP300