1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index cbe83bf294c9..1f73cf72a7c5 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -63,6 +63,12 @@ static unsigned int i8042_blink_frequency = 500;
 module_param_named(panicblink, i8042_blink_frequency, uint, 0600);
 MODULE_PARM_DESC(panicblink, "Frequency with which keyboard LEDs should blink when kernel panics");
 
+#ifdef CONFIG_X86
+static unsigned int i8042_dritek;
+module_param_named(dritek, i8042_dritek, bool, 0);
+MODULE_PARM_DESC(dritek, "Force enable the Dritek keyboard extension");
+#endif
+
 #ifdef CONFIG_PNP
 static int i8042_nopnp;
 module_param_named(nopnp, i8042_nopnp, bool, 0);
@@ -1145,6 +1151,7 @@ static int __devinit i8042_setup_kbd(void)
 static int __devinit i8042_probe(struct platform_device *dev)
 {
         int error;
+        char param;
 
         error = i8042_controller_selftest();
         if (error)
@@ -1166,6 +1173,13 @@ static int __devinit i8042_probe(struct platform_device *dev)
                         goto out_fail;
         }
 
+        if (i8042_dritek) {
+                param = 0x90;
+                error = i8042_command(&param, 0x1059);
+                if (error)
+                        goto out_fail;
+        }
+
 /*
  * Ok, everything is ready, let's register all serio ports
  */