when HID host is initialized, the event comes.
when HID host is deinitialized, the event comes.
when HID host connection opened, the event comes.
when HID host connection closed, the event comes.
when Get_Report command is called, the event comes.
when Set_Report command is called, the event comes.
when Get_Protocol command is called, the event comes.
when Set_Protocol command is called, the event comes.
when Get_Idle command is called, the event comes.
when Set_Idle command is called, the event comes.
when HIDH is initialized, the event comes.
when a device is added, the event comes.
when a device is removed, the event comes.
when virtually unplugged, the event comes.
when send data on interrupt channel, the event comes.
when receive data on interrupt channel, the event comes.
when set the HID device descriptor, the event comes.