为什么Python是Python pyusbusb核心由于权限而拒绝访问，为什么规则.d无法修复它？

looking at device '/devices/pci0000:00/0000:00:10.0/usb6/6-1': KERNEL=="6-1" SUBSYSTEM=="usb" DRIVER=="usb" ATTR{authorized}=="1" ATTR{avoid_reset_quirk}=="0" ATTR{bConfigurationValue}=="1" ATTR{bDeviceClass}=="00" ATTR{bDeviceProtocol}=="00" ATTR{bDeviceSubClass}=="00" ATTR{bMaxPacketSize0}=="8" ATTR{bMaxPower}=="98mA" ATTR{bNumConfigurations}=="1" ATTR{bNumInterfaces}==" 1" ATTR{bcdDevice}=="0111" ATTR{bmAttributes}=="80" ATTR{busnum}=="6" ATTR{configuration}=="" ATTR{devnum}=="11" ATTR{devpath}=="1" ATTR{idProduct}=="0001" ATTR{idVendor}=="17a4" ATTR{ltm_capable}=="no" ATTR{manufacturer}=="Concept2" ATTR{maxchild}=="0" ATTR{product}=="Concept2 Performance Monitor 3 (PM3)" ATTR{quirks}=="0x0" ATTR{removable}=="unknown" ATTR{serial}=="300118412" ATTR{speed}=="12" ATTR{urbnum}=="12" ATTR{version}==" 1.10"

calling: test version 229 This program is for debugging only, it does not run any program specified by a RUN key. It may show incorrect results, because some values may be different, or not available at a simulation run. === trie on-disk === tool version: 229 file size: 7049340 bytes header size 80 bytes strings 1759644 bytes nodes 5289616 bytes Load module index timestamp of '/etc/systemd/network' changed timestamp of '/lib/systemd/network' changed Parsed configuration file /lib/systemd/network/99-default.link Created link configuration context. timestamp of '/etc/udev/rules.d' changed Reading rules file: /etc/udev/rules.d/10-local.rules Reading rules file: /lib/udev/rules.d/40-crda.rules [removed long list of rule files...] Skipping empty file: /etc/udev/rules.d/99-usbftdi.rules rules contain 393216 bytes tokens (32768 * 12 bytes), 33403 bytes strings 25688 strings (211409 bytes), 22263 de-duplicated (181432 bytes), 3426 trie nodes used GROUP 100 /etc/udev/rules.d/10-local.rules:1 MODE 0777 /etc/udev/rules.d/10-local.rules:1 value '[dmi/id]sys_vendor' is 'LENOVO' value '[dmi/id]sys_vendor' is 'LENOVO' IMPORT builtin 'usb_id' /lib/udev/rules.d/50-udev-default.rules:13 IMPORT builtin 'hwdb' /lib/udev/rules.d/50-udev-default.rules:13 MODE 0664 /lib/udev/rules.d/50-udev-default.rules:41 PROGRAM 'mtp-probe /sys/devices/pci0000:00/0000:00:10.0/usb6/6-1 6 11' /lib/udev/rules.d/69-libmtp.rules:1923 starting 'mtp-probe /sys/devices/pci0000:00/0000:00:10.0/usb6/6-1 6 11' 'mtp-probe /sys/devices/pci0000:00/0000:00:10.0/usb6/6-1 6 11'(out) '0' Process 'mtp-probe /sys/devices/pci0000:00/0000:00:10.0/usb6/6-1 6 11' succeeded. handling device node '/dev/bus/usb/006/011', devnum=c189:650, mode=0664, uid=0, gid=100 set permissions /dev/bus/usb/006/011, 020664, uid=0, gid=100 setting mode of /dev/bus/usb/006/011 to 020664 failed: Operation not permitted setting owner of /dev/bus/usb/006/011 to uid=0, gid=100 failed: Operation not permitted ACTION=add BUSNUM=006 DEVNAME=/dev/bus/usb/006/011 DEVNUM=011 DEVPATH=/devices/pci0000:00/0000:00:10.0/usb6/6-1 DEVTYPE=usb_device DRIVER=usb ID_BUS=usb ID_MODEL=Concept2_Performance_Monitor_3__PM3_ ID_MODEL_ENC=Concept2\x20Performance\x20Monitor\x203\x20\x28PM3\x29 ID_MODEL_FROM_DATABASE=Performance Monitor 3 ID_MODEL_ID=0001 ID_REVISION=0111 ID_SERIAL=Concept2_Concept2_Performance_Monitor_3__PM3__300118412 ID_SERIAL_SHORT=300118412 ID_USB_INTERFACES=:030000: ID_VENDOR=Concept2 ID_VENDOR_ENC=Concept2 ID_VENDOR_FROM_DATABASE=Concept2 ID_VENDOR_ID=17a4 MAJOR=189 MINOR=650 PRODUCT=17a4/1/111 SUBSYSTEM=usb TYPE=0/0/0 USEC_INITIALIZED=3850171749 Unload module index Unloaded link configuration context.

Traceback (most recent call last): File "/home/user1/PycharmProjects/PyRow/statshow.py", line 22, in <module> erg = pyrow.pyrow(ergs[0]) File "/home/user1/PycharmProjects/PyRow/pyrow.py", line 61, in __init__ usb.util.claim_interface(erg, INTERFACE) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/util.py", line 205, in claim_interface device._ctx.managed_claim_interface(device, interface) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/core.py", line 102, in wrapper return f(self, *args, **kwargs) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/core.py", line 159, in managed_claim_interface self.managed_open() File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/core.py", line 102, in wrapper return f(self, *args, **kwargs) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/core.py", line 120, in managed_open self.handle = self.backend.open_device(self.dev) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/backend/libusb1.py", line 786, in open_device return _DeviceHandle(dev) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/backend/libusb1.py", line 643, in __init__ _check(_lib.libusb_open(self.devid, byref(self.handle))) File "/home/user1/PycharmProjects/camera/venv/lib/python3.5/site-packages/usb/backend/libusb1.py", line 595, in _check raise USBError(_strerror(ret), ret, _libusb_errno[ret]) usb.core.USBError: [Errno 13] Access denied (insufficient permissions)

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1楼 · 发布于 2024-05-19 19:29:14

使用this answer我发现我可以使用plugdev组更正权限问题。在

所以在我用过的终端里

groups
groups [myuserid]

并确认plugdev在那里，用户也是该组的一部分。然后我将以下行放入/etc/udev/rules.d/10-本地规则在

^{bq}$

我不确定devtype和0777或0666是否正确，但这是有效的。在

在进行更改之后，我还运行了以下命令来重置系统的规则：

^{pr2}$

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