From 27ec17b4056c54ad2d7bd0b278bc375a8648b301 Mon Sep 17 00:00:00 2001
From: Qingping Hou <dave2008713@gmail.com>
Date: Wed, 12 Dec 2012 10:02:32 +0800
Subject: [PATCH] only echo to /proc/keypad for K3 and DXG

---
 kpdf.sh    | 6 ++++--
 reader.lua | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/kpdf.sh b/kpdf.sh
index a2b09ee4c..4c5f41829 100755
--- a/kpdf.sh
+++ b/kpdf.sh
@@ -1,8 +1,10 @@
 #!/bin/sh
 export LC_ALL="en_US.UTF-8"
 
-echo unlock > /proc/keypad
-echo unlock > /proc/fiveway
+PROC_KEYPAD="/proc/keypad"
+PROC_FIVEWAY="/proc/fiveway"
+test -e $PROC_KEYPAD && echo unlock > $PROC_KEYPAD
+test -e $PROC_FIVEWAY && echo unlock > $PROC_FIVEWAY
 
 # we're always starting from our working directory
 cd /mnt/us/kindlepdfviewer/
diff --git a/reader.lua b/reader.lua
index 12afe36ea..dd460cd64 100755
--- a/reader.lua
+++ b/reader.lua
@@ -136,6 +136,8 @@ Screen:setRotationMode(Screen.native_rotation_mode)
 input.closeAll()
 if util.isEmulated()==0 then
 	os.execute("killall -cont cvm")
-	-- send double menu key press events to trigger screen refresh
-	os.execute("echo 'send 139' > /proc/keypad;echo 'send 139' > /proc/keypad")
+	if Device:isKindle3() or (Device:getModel() == "KindleDXG") then
+		-- send double menu key press events to trigger screen refresh
+		os.execute("echo 'send 139' > /proc/keypad;echo 'send 139' > /proc/keypad")
+	end
 end