您好我正在尝试使用 usb1.py 在 Logitech G27 方向盘上实现力反馈。
我正在尝试使用这种力反馈协议：
https://opensource.logitech.com/opensource/images/c/ce/Logitech_Force_Feedback_Protocol_V1.5.pdf
当我将 interrupt_write 与 ENDPOINT1 一起使用时，我发送了 8 个字节而不是协议使用的 7 个字节。
我试图通过在 CMD 位中发送 0x05 来关闭默认弹簧，但我没有让它工作。
我试图通过以下代码来实现它：
g27_constants.py
Spring_off = bytearray([0x05,0x00,0x00,0x00,0x00,0x00,0x00])
force_feedback.py
import sys
import time
import usb1 as usb
import libusb1
import os
import g27_constants as constG27
###################################################################################################################
# idn enl control panel
# USB\VID_046D&PID_C29B is the same as found on the internet.
# creating a logitech g27 class with all necessary files.
class MissingG27(Exception):
"""No G27 found on USB."""
class data_type_error(Exception):
"""Wrong data type!"""
class G27(object):
VENDID = 0x046D
PRODID = 0xC29B
ENDPOINT = 1
INTERFACE = 0
def __init__(self, temp):
self.temp = temp
def open(self):
self.context = usb.USBContext()
self.dev = self.context.getByVendorIDAndProductID(self.VENDID, self.PRODID)
if not (self.dev):
raise MissingG27()
else:
print('Logitech G27 device is connected!')
self.handle = self.dev.open()
# self.handle.resetDevice() unsure if this is needed!
self.handle.claimInterface(self.INTERFACE)
self.write_data(constG27.Spring_off) #turn off return spring.
def close(self):
self.handle.releaseInterface(self.INTERFACE)
self.handle.close()
def write_data(self, buf):
str_buf = ''.join(map(chr, buf))
result = self.handle.interruptWrite(0x01, str_buf,timeout=255)
if result != len(buf):
print('Error did not send correct data sent ' + str(result) + ' bytes!' + ' \n buff size is: '
+ str(len(buf)) + ' bytes.')
else:
print('Succes, You sent: ' + str(result) + ' bytes!')
g27_device = G27(0)
g27_device.open()
任何人都知道我做错了什么？