Dne 9.11.2015 v 10:11 Krzysztof Opasiak napsal(a): > Hi, > > On 11/08/2015 08:27 PM, Martin Kozelský wrote: >> Hi, I have trouble with CP2110 chip (USB-to-serial converter) in kernel, >> no /dev/ttyUSBx device created after connection. >> >> I reported this bug https://bugzilla.kernel.org/show_bug.cgi?id=107501 >> > > Maybe try to blacklisting HID driver for this device would be a good > place to start? > > Best regards, HID drivers are compiled-in in kernel, it is not possible to unload/load module. I tried manually unbind/bind USB device: [root@core ~]# echo -n "12-3:1.0" > /sys/bus/usb/drivers/usbhid/unbind [root@core ~]# echo -n "12-3:1.0" > /sys/bus/usb/drivers/cp210x/bind It works: [ 5097.607983] cp210x 12-3:1.0: cp210x converter detected [ 5097.608316] usb 12-3: cp210x converter now attached to ttyUSB0 But any attempt to open device /dev/ttyUSB0 make an error: FATAL: cannot open /dev/ttyUSB0: Input/output error Logs: [ 5352.421188] cp210x ttyUSB0: cp210x_open - Unable to enable UART Something is also wrong. -- Martin Kozelsky -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
