/* Performs a timer tick. In this simple case all we do is count down with protection against underflow and wrapping at the low end.  */
static void SerialTimeoutTick(ISP_ENVIRONMENT *IspEnvironment)
/* Performs a timer tick. In this simple case all we do is count down with protection against underflow and wrapping at the low end.  */
static void SerialTimeoutTick(ISP_ENVIRONMENT *IspEnvironment)
{
    if (IspEnvironment->serial_timeout_count <= 1)
    {
        IspEnvironment->serial_timeout_count = 0;
    }
    else
    {
        IspEnvironment->serial_timeout_count--;
    }
}