SWITCHTEC_EVENT_OCCURRED
ctl->occurred = hdr & SWITCHTEC_EVENT_OCCURRED;
if (!(hdr & SWITCHTEC_EVENT_OCCURRED && hdr & SWITCHTEC_EVENT_EN_IRQ))
hdr &= ~(SWITCHTEC_EVENT_EN_IRQ | SWITCHTEC_EVENT_OCCURRED);
if (reg & SWITCHTEC_EVENT_OCCURRED) {