PL_PCM_BREAK
if (cmd & PL_PCM_BREAK) { /* PCM has entered the BREAK state */
static const int plc_imsk_na = PL_PCM_CODE | PL_TRACE_PROP | PL_PCM_BREAK |
static int plc_imsk_na = PL_PCM_CODE | PL_TRACE_PROP | PL_PCM_BREAK |
static const int plc_imsk_act = PL_PCM_CODE | PL_TRACE_PROP | PL_PCM_BREAK |