假設您使用Linux和libusb-1.0作為PyUSB的后端庫。// Detach a kernel driver from an interface.

// If successful, you will then be able to claim the interface and perform I/O.

int libusb_detach_kernel_driver (libusb_device_handle *dev,

int interface_number)

// Re-attach an interface's kernel driver, which was previously

// detached using libusb_detach_kernel_driver().

int libusb_attach_kernel_driver(libusb_device_handle *dev,

int interface_number)

因此，基本上，您需要首先調用detach_kernel_driver來從設備接口分離已經連接的內核驅動程序(如果有的話)，這樣您就可以在代碼中與它通信(它要么是您的代碼，要么是某個內核驅動程序在與設備接口通信)。完成后，您可能需要調用attach_kernel_driver重新連接內核驅動程序。

我相信如果您可以確保沒有為給定的設備加載內核驅動程序(或者在運行代碼之前手動卸載它)，那么就不需要調用任何這些C函數/Python方法。

編輯：

我剛把這段代碼(基于你的示例)處理好。注意：為了簡單起見，我將0硬編碼為detach_kernel_driver和attach_kernel_driver的接口號-我想您應該使它更智能。import usb

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

reattach = False

if dev.is_kernel_driver_active(0):

reattach = True

dev.detach_kernel_driver(0)

dev.set_configuration()

cfg = dev.get_active_configuration()

interface_number = cfg[(0,0)].bInterfaceNumber

alternate_settting = usb.control.get_interface(dev, interface_number)

intf = usb.util.find_descriptor(cfg, bInterfaceNumber = interface_number,

bAlternateSetting = alternate_settting)

ep = usb.util.find_descriptor(intf,custom_match = \

lambda e: \

usb.util.endpoint_direction(e.bEndpointAddress) == \

usb.util.ENDPOINT_OUT)

ep.write("test\n\r")

# This is needed to release interface, otherwise attach_kernel_driver fails

# due to "Resource busy"

usb.util.dispose_resources(dev)

# It may raise USBError if there's e.g. no kernel driver loaded at all

if reattach:

dev.attach_kernel_driver(0)

總結

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