public void WriteCccd(BleCharacteristic characteristic, BleCccd cccd, BleRequestFlags requestFlags)
{
Throw.If.Null(characteristic, "characteristic");
BleDescriptor descriptor;
if (!characteristic.TryGetDescriptor(BleUuids.Cccd, out descriptor))
{
HidSharpDiagnostics.Trace("Characteristic {0} does not have a CCCD, so {1} could not be written.", characteristic, cccd);
return;
}
if (cccd == BleCccd.Notification)
{
HidSharpDiagnostics.PerformStrictCheck(characteristic.IsNotifiable, "Characteristic doesn't support Notify.");
}
if (cccd == BleCccd.Indication)
{
HidSharpDiagnostics.PerformStrictCheck(characteristic.IsIndicatable, "Characteristic doesn't support Indicate.");
}
var value = new byte[2];
value[0] = (byte)((ushort)cccd >> 0);
value[1] = (byte)((ushort)cccd >> 8);
WriteDescriptor(descriptor, value);
}
public BleCccd ReadCccd(BleCharacteristic characteristic, BleRequestFlags requestFlags)
{
BleDescriptor descriptor;
if (!characteristic.TryGetDescriptor(BleUuids.Cccd, out descriptor))
{
HidSharpDiagnostics.Trace("Characteristic {0} does not have a CCCD, so it could not be read.", characteristic);
return(BleCccd.None);
}
var value = ReadDescriptor(descriptor, requestFlags); var cccd = BleCccd.None;
if (value.Length >= 1 && value[0] == (byte)BleCccd.Notification)
{
cccd = BleCccd.Notification;
}
if (value.Length >= 1 && value[0] == (byte)BleCccd.Indication)
{
cccd = BleCccd.Indication;
}
return(cccd);
}