我无法通过 USB 连接树莓派和传感器

Question

I connect raspberry Pi(CM3+) with sensor by USB. I download and install pyusb. I write the followig python codes.But, error massage appear. I wonder if you could give me advices.

codes

import usb.core
import usb.util

# find our device
dev = usb.core.find(idVendor=0x0403, idProduct=0x6001)

# was it found?
if dev is None:
    raise ValueError('Device not found')

# set the active configuration. With no arguments, the first
# configuration will be the active one
dev.set_configuration()

# get an endpoint instance
cfg = dev.get_active_configuration()
intf = cfg[(0,0)]

ep = usb.util.find_descriptor(
    intf,
    # match the first OUT endpoint
    custom_match = \
    lambda e: \
        usb.util.endpoint_direction(e.bEndpointAddress) == \
        usb.util.ENDPOINT_OUT)

assert ep is not None

# write the data
ep.write('test')

error

raise USBError(_strerror(ret), ret, _libusb_errno[ret])
   usb.core.USBError: [Errno 16] Resource busy

Answer 1

Solution 1. :: Try to Reset the kernel using

dev.reset()

Solution 2 :: Detach if any devices previously attached that are cached using

if dev.is_kernel_driver_active(0):
    reattach = True
    dev.detach_kernel_driver(0)