我正在尝试使用 Pyusb 模块通过 Python 与该设备进行通信
该设备是 DualSense Ps5 控制器,我正在运行 Rasbian Lite(无桌面环境)
到目前为止我的代码是:
import usb.core
dev = usb.core.find(idVendor=0x054c,idProduct=0x0ce6)
ep = dev[0].interfaces()[5].endpoints()[0]
i = dev[0].interfaces()[5].bInterfaceNumber
dev.reset()
if dev.is_kernel_driver_active(i):
dev.detach_kernel_driver(i)
dev.set_configuration()
eaddr = ep.bEndpointAdress
r = dev.read(eaddr,1024)
print(len(r))
我不断收到的错误是:
Traceback (most recent call last):
File "readUsb.py", line 25, in <module>
dev.set_configuration()
File "/usr/local/lib/python3.7/dist-packages/usb/core.py", line 905, in set_configuration
self._ctx.managed_set_configuration(self, configuration)
File "/usr/local/lib/python3.7/dist-packages/usb/core.py", line 113, in wrapper
return f(self, *args, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/usb/core.py", line 159, in managed_set_configuration
self.backend.set_configuration(self.handle, cfg.bConfigurationValue)
File "/usr/local/lib/python3.7/dist-packages/usb/backend/libusb1.py", line 812, in set_configuration
_check(self.lib.libusb_set_configuration(dev_handle.handle, config_value))
File "/usr/local/lib/python3.7/dist-packages/usb/backend/libusb1.py", line 604, in _check
raise USBError(_strerror(ret), ret, _libusb_errno[ret])
usb.core.USBError: [Errno 16] Resource busy
我对 USB 设备如何通信知之甚少,而且我选择的接口有点随意。如果您对如何释放此资源或与设备进行一般通信有任何建议,我们将不胜感激。
以下对我有用:
if dev.is_kernel_driver_active(i):
try:
dev.detach_kernel_driver(i)
except usb.core.USBError as e:
sys.exit("Could not detatch kernel driver from interface({0}): {1}".format(i, str(e)))
如果这不起作用,请使用它,但还要删除
dev.set_configuration()
,它应该可以工作。
我遇到了这个问题,结果是我从错误的接口中分离了内核驱动程序。请注意,
detach_kernel_driver()
采用接口编号。