Device Warning Status Mask

{
    warningNoSignal     = 0x01  // No Signal
    warningNoUSB        = 0x02  // USB flash disk is invalid  
    warningFullUSB      = 0x04  // USB flash disk is full.
    warningFullMSD      = 0x08  // Local storage is full.
    warningNoSD         = 0x10  // Local storage is invalid.
}