Question about get input and send output from my custom USB device. about pywinusb HOT 5 OPEN

 def add_event_handler(self, full_usage_id, handler_function,
            event_kind = HID_EVT_ALL, aux_data = None):
        """Add event handler for usage value/button changes,
        returns True if the handler function was updated"""
        report_id = self.find_input_usage(full_usage_id)
        if report_id != None:
            # allow first zero to trigger changes and releases events
            self.__input_report_templates[report_id][full_usage_id].__value = None
        if report_id == None or not handler_function:
            # do not add handler
            return False
        assert(isinstance(handler_function, collections.Callable)) # must be a function
        # get dictionary for full usages
        top_map_handler = self.__evt_handlers.get(full_usage_id, dict())
        event_handler_set = top_map_handler.get(event_kind, dict())
        # update handler
        event_handler_set[handler_function] = aux_data
        if event_kind not in top_map_handler:
            top_map_handler[event_kind] = event_handler_set
        if full_usage_id not in self.__evt_handlers:
            self.__evt_handlers[full_usage_id] = top_map_handler
        return True

import pywinusb.hid as hid
import time




class hidHelper(object):
    def __init__(self, vid=0x0483, pid=0xa005):
        self.alive = False
        self.device = None
        self.report = None
        self.vid = vid
        self.pid = pid

    def setcallback(self):
        '''
        设置接收数据回调函数
        '''
        if self.device:
            self.device.set_raw_data_handler(self.read)

    def read(self, data):
        '''
        接收数据回调函数
       '''

        print([hex(item).upper() for item in data[1:]])

    def start(self):
        '''
        开始，打开HID设备
        '''
        _filter = hid.HidDeviceFilter(vendor_id = self.vid, product_id = self.pid)
        hid_device = _filter.get_devices()
        if len(hid_device) > 0:
            self.device = hid_device[0]
            self.device.open()
            self.setcallback()
            self.out_report = self.device.find_output_reports()
            self.in_report = self.device.find_input_reports()
            self.alive = True

    def stop(self):
        '''
        停止，关闭HID设备
        '''
        self.alive = False
        if self.device:
            self.device.close()

if __name__ == '__main__':
    myhid = hidHelper()
    myhid.start()
    input_interrupt_transfers = False
    if myhid.alive:
        send_list = [0xFF]*1101
        send_list[0] = 0xfd
        myhid.out_report[0].send(send_list)
        myhid.in_report[0].get()
        time.sleep(0.5)
        myhid.stop()