void usbevt_suspend () {
/// Call sys_halt() first and mpipe_close() & (mpipe.state = MPIPE_Null) last,
/// because this guarantees that whatever happens in sys_halt() does not change
/// the fact that we are certain MPipe must be suspended. sys_halt() is not a
/// sure-thing: some devices might have batteries, and the non-MPipe part of
/// the application might not want or need to halt.
# if (MPIPE_USB_REMWAKE)
if (mpipe.state >= MPIPE_Idle) {
mpipe_close();
mpipe.state = MPIPE_Null;
sys_halt(HALT_lowpower); //should set platform_ext.usb_wakeup ... or not
}
# else
mpipe_close();
mpipe.state = MPIPE_Null;
# endif
}
void mpipe_disconnect(void* port_id) {
mpipe_close();
mpipedrv_detach(port_id);
}