Registering and Unregistering the Event Handler - Registering and Unregistering the Event Handler - 2026.1 English - UG1304

void TestNotifyCb(XPm_Notifier* const notifier)
{
	xil_printf("Received notification: Node=0x%x, Event=%d, OPP=%d\n",
		 notifier->node, (int)notifier->event, (int)notifier->oppoint);
}

• Notifier object for device event:

  XPm_Notifier notifier = {
  .callback = TestNotifyCb,
  .node = PM_DEV_USB_0,
  .event = EVENT_STATE_CHANGE,
  .flags = 0,
  };

• Notifier object for power event:

  XPm_Notifier notifier = {
  .callback = TestNotifyCb,
  .node = PM_POWER_FPD,
  .event = EVENT_ZERO_USER,
  .flags = 0,
  };

• Notifier object for register error event:

  XPm_Notifier notifier = {
  .callback = TestNotifyCb,
  .node = XIL_NODETYPE_EVENT_ERROR_PMC_ERR1,
  .event = XIL_EVENT_ERROR_MASK_CFRAME,
  .flags = 0,
  };

XPm_RegisterNotifier(&notifier);

XPm_UnregisterNotifier(&notifier);