chore: some little cleanup

main.go

@@ -14,7 +14,7 @@ import (
  "github.com/coreos/go-systemd/login1"
 )
 
-// Sensor is a iio accelerometer struct
+// Sensor is a IIO accelerometer struct
 type Sensor struct {
  axis map[string]float64
  scale float64
@@ -25,9 +25,9 @@ func main() {
  debug, _ := strconv.ParseBool(os.Getenv("DEBUG"))
  sensitivity, err := strconv.ParseInt(os.Getenv("SENSITIVITY"), 0, 16)
  if err != nil || sensitivity < 0 {
- sensitivity = 5
+ sensitivity = 10
  }
- log.Printf("GyroLock start with sensitivy = %d", sensitivity)
+ log.Printf("GyroLock start with sensitivity = %d", sensitivity)
  prev := New(debug)
  cur := New(debug)
  for {
@@ -75,22 +75,25 @@ func (s *Sensor) Get() {
  y := s.ReadSensor("y")
  z := s.ReadSensor("z")
  if s.debug {
- log.Printf("current: x:%v y:%v z:%v\n", x, y, z)
+ log.Printf("current: x:%v y:%v z:%v", x, y, z)
  }
 }
 
 // ReadSensorScale read sensor scale value
 func (s *Sensor) ReadSensorScale() {
  fp, err := filepath.Glob("/sys/bus/iio/devices/iio:device*/in_accel_scale")
  if err != nil {
- log.Fatal("Can't get file")
+ log.Fatal("Can't get file in_accel_scale")
  }
  content, err := ioutil.ReadFile(fp[0])
  if err != nil {
- log.Fatalf("Can't read sensor scale value")
+ log.Fatalf("Can't read sensor scale value from in_accel_scale")
  }
- scale, _ := strconv.ParseFloat(strings.TrimSpace(string(content)), 64)
- s.scale = float64(scale)
+ scale, err := strconv.ParseFloat(strings.TrimSpace(string(content)), 64)
+ if err != nil {
+ scale = 1
+ }
+ s.scale = scale
 }
 
 // ReadSensor read sensor value as absolute value
@@ -101,14 +104,14 @@ func (s *Sensor) ReadSensor(axis string) float64 {
  fmt.Sprintf("/sys/bus/iio/devices/iio:device*/in_accel_%s_raw", axis),
  )
  if err != nil {
- log.Fatal("Can't get file")
+ log.Fatalf("Can't get file in_accel_%s_raw", axis)
  }
  content, err := ioutil.ReadFile(fp[0])
  if err != nil {
- log.Fatalf("Can't read sensor value of axis %s", axis)
+ log.Fatalf("Can't read sensor value from in_accel_%s_raw", axis)
  }
- value, _ = strconv.ParseInt(strings.TrimSpace(string(content)), 0, 64)
- if value != 0 {
+ value, err = strconv.ParseInt(strings.TrimSpace(string(content)), 0, 64)
+ if err == nil && value != 0 {
  break
  }
  time.Sleep(10 * time.Millisecond)