diff --git a/.gitignore b/.gitignore
index a1338d6..fc79cc3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,14 +1,8 @@
-# Binaries for programs and plugins
-*.exe
 *.dll
-*.so
 *.dylib
-
-# Test binary, build with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
+*.exe
 *.out
-
-# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+*.so
+*.test
 .glide/
+linux-input-control
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..cb64d6b
--- /dev/null
+++ b/main.go
@@ -0,0 +1,60 @@
+package main
+
+import (
+	"encoding/binary"
+	"log"
+	"os"
+)
+
+var (
+	senable  = []byte("a")
+	sdisable = []byte("d")
+)
+
+func main() {
+	// TODO: command line flag
+	masterPath := "/dev/input/event0"
+	slavePath := "/sys/bus/i2c/devices/0-0050/neocmd"
+
+	var master, slave *os.File
+	var err error
+	if master, err = os.Open(masterPath); err != nil {
+		log.Fatal("open ", masterPath, err)
+	}
+
+	slaveState := true
+	evb := make([]byte, 16)
+	for {
+		n, err := master.Read(evb)
+		if err != nil {
+			log.Print("master.Read: ", err)
+			continue
+		}
+		if n != 16 {
+			log.Printf("master.Read invalid event size=%d, ignore", n)
+			continue
+		}
+		evType := binary.LittleEndian.Uint16(evb[8:])
+		evCode := binary.LittleEndian.Uint16(evb[10:])
+		evValue := binary.LittleEndian.Uint32(evb[12:])
+		log.Printf("event type=%d code=%d value=%d", evType, evCode, evValue)
+
+		if evType == 1 && evCode == 116 && evValue == 1 {
+			sb := senable
+			slaveState = !slaveState
+			if !slaveState {
+				sb = sdisable
+			}
+			log.Printf("power key pressed, new slavestate=%v writing=%s", slaveState, string(sb))
+			if slave, err = os.OpenFile(slavePath, os.O_WRONLY|os.O_TRUNC, 0644); err != nil {
+				log.Fatal("open ", slavePath, err)
+			}
+			if _, err = slave.WriteAt(sb, 0); err != nil {
+				log.Fatal("slave.Write ", err)
+			}
+			if err = slave.Close(); err != nil {
+				log.Fatal("slave.Close ", err)
+			}
+		}
+	}
+}
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..6ab3f1e
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,17 @@
+What
+====
+
+For XCSoar flight pilots. Switch IR touchpad on/off with power button on Kobo.
+
+
+Instruction
+===========
+
+Build: `ARCH=arm GOARM=7 GOOS=linux go build`
+Upload: `tnftp -u kobo@192.168.1.111: linux-input-control`
+
+
+Contact
+=======
+
+temotor@gmail.com