func firstSerialDevice()

in main.go [114:130]

• 14 lines of code
• 4 McCabe index (conditional complexity)

func firstSerialDevice(devPaths []string) string {
	serialDeviceNode := func(p string) bool {
		if stat, err := os.Stat(p); err == nil {
			return stat.Mode()&fs.ModeCharDevice == fs.ModeCharDevice
		}
		return false
	}

	for _, devPath := range devPaths {
		if serialDeviceNode(devPath) {
			return devPath
		}
	}

	// no suitable device found
	return ""
}