func onStateChanged(d gatt.Device, s gatt.State) {
fmt.Println("State:", s)
switch s {
case gatt.StatePoweredOn:
fmt.Println("scanning...")
d.Scan([]gatt.UUID{}, false)
return
default:
d.StopScanning()
}
}
// Get bdaddr with LnxSendHCIRawCommand() for demo purpose
func bdaddr(d gatt.Device) {
rsp := bytes.NewBuffer(nil)
if err := d.Option(gatt.LnxSendHCIRawCommand(&cmdReadBDAddr{}, rsp)); err != nil {
fmt.Printf("Failed to send HCI raw command, err: %s", err)
}
b := rsp.Bytes()
if b[0] != 0 {
fmt.Printf("Failed to get bdaddr with HCI Raw command, status: %d", b[0])
}
log.Printf("BD Addr: %02X:%02X:%02X:%02X:%02X:%02X", b[6], b[5], b[4], b[3], b[2], b[1])
}