kernel doesn't obey udev usb rule
by alexbour from LinuxQuestions.org on (#56Q11)
I placed udev rule, that should prevent kernel from assigning any driver for my device:
# cat /etc/udev/rules.d/61-vedemo.rules
SUBSYSTEM=="usb",ATTRS{idVendor}=="16c0",ATTRS{idProduct}=="05dc",GROUP="users",MODE="0666"
SUBSYSTEM=="usb",ATTRS{idVendor}=="16c0",ATTRS{idProduct}=="05dc"", ATTR{authorized}="0", ENV{ID_MM_DEVICE_IGNORE}="1"
nevertheless/kernel assign usb driver for my device, see below:
udevadm info /dev/bus/usb/002/006
P: /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.1
N: bus/usb/002/006
E: BUSNUM=002
E: DEVNAME=/dev/bus/usb/002/006
E: DEVNUM=006
E: DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.1
E: DEVTYPE=usb_device
E: DRIVER=usb
E: ID_BUS=usb
E: ID_MODEL=VE12Demo_Board_ctrl
E: ID_MODEL_ENC=VE12Demo\x20Board_ctrl
E: ID_MODEL_FROM_DATABASE=shared ID for use with libusb
E: ID_MODEL_ID=05dc
E: ID_REVISION=0100
E: ID_SERIAL=....
E: ID_SERIAL_SHORT=JUL_2020AU
E: ID_USB_INTERFACES=:ff0000:
E: ID_VENDOR=....
E: ID_VENDOR_ENC=...
E: ID_VENDOR_FROM_DATABASE=Van Ooijen Technische Informatica
Any help appreciated, I can't move forward, while I have LIBUSB_ERROR_BUSY(-6) error, since libusb isn't able to claim interface 0, step,required to communicate with my device.And all this despite the fact , that I explicitly de attach driver before calling libusb_claim_interface....
I tried to disable ehci-pci driver, but it did no work and cause side effects
my kernel is:$ uname -a
Linux latitude 4.18.0-193.14.3.el8_2.x86_64 #1 SMP Mon Jul 20 15:02:29 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux,my device is launchpad tm4c123gxl...
# cat /etc/udev/rules.d/61-vedemo.rules
SUBSYSTEM=="usb",ATTRS{idVendor}=="16c0",ATTRS{idProduct}=="05dc",GROUP="users",MODE="0666"
SUBSYSTEM=="usb",ATTRS{idVendor}=="16c0",ATTRS{idProduct}=="05dc"", ATTR{authorized}="0", ENV{ID_MM_DEVICE_IGNORE}="1"
nevertheless/kernel assign usb driver for my device, see below:
udevadm info /dev/bus/usb/002/006
P: /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.1
N: bus/usb/002/006
E: BUSNUM=002
E: DEVNAME=/dev/bus/usb/002/006
E: DEVNUM=006
E: DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4.1
E: DEVTYPE=usb_device
E: DRIVER=usb
E: ID_BUS=usb
E: ID_MODEL=VE12Demo_Board_ctrl
E: ID_MODEL_ENC=VE12Demo\x20Board_ctrl
E: ID_MODEL_FROM_DATABASE=shared ID for use with libusb
E: ID_MODEL_ID=05dc
E: ID_REVISION=0100
E: ID_SERIAL=....
E: ID_SERIAL_SHORT=JUL_2020AU
E: ID_USB_INTERFACES=:ff0000:
E: ID_VENDOR=....
E: ID_VENDOR_ENC=...
E: ID_VENDOR_FROM_DATABASE=Van Ooijen Technische Informatica
Any help appreciated, I can't move forward, while I have LIBUSB_ERROR_BUSY(-6) error, since libusb isn't able to claim interface 0, step,required to communicate with my device.And all this despite the fact , that I explicitly de attach driver before calling libusb_claim_interface....
I tried to disable ehci-pci driver, but it did no work and cause side effects
my kernel is:$ uname -a
Linux latitude 4.18.0-193.14.3.el8_2.x86_64 #1 SMP Mon Jul 20 15:02:29 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux,my device is launchpad tm4c123gxl...