Dear Kernel developers, in Fedora 21 I used the additional Grub2-lines "usbserial.vendor=0x3f0 usb.product=0x521d" in the /etc/default/grub or on startup to use the built-in UMTS 3G Modem of my HP EliteBook 840. In Fedora 22, with comes with Kernel 4.0, it doesn't work anymore, my systemd's journal warns me about the testing propose of the "usbserial" kernel module and recommends to write you an email. see journalctl output: Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: New USB device found, idVendor=03f0, idProduct=521d Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: New USB device strings: Mfr=5, Product=4, SerialNumber=0 Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: Product: HP hs3110 HSPA+ Mobile Broadband Device Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: Manufacturer: Hewlett-Packard Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.0: The "generic" usb-serial driver is only for testing and one-off prototypes. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.0: Tell linux-usb@xxxxxxxxxxxxxxx to add your device to a proper driver. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.0: generic converter detected Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: generic converter now attached to ttyUSB0 Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.1: The "generic" usb-serial driver is only for testing and one-off prototypes. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.1: Tell linux-usb@xxxxxxxxxxxxxxx to add your device to a proper driver. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.1: generic converter detected Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: generic converter now attached to ttyUSB1 Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.2: The "generic" usb-serial driver is only for testing and one-off prototypes. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.2: Tell linux-usb@xxxxxxxxxxxxxxx to add your device to a proper driver. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.2: generic converter detected Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: generic converter now attached to ttyUSB2 Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.3: The "generic" usb-serial driver is only for testing and one-off prototypes. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.3: Tell linux-usb@xxxxxxxxxxxxxxx to add your device to a proper driver. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.3: generic converter detected Mai 08 12:57:21 fedora22laptop kernel: usb 1-6: generic converter now attached to ttyUSB3 Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.4: Generic device with no bulk out, not allowed. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic: probe of 1-6:1.4 failed with error -5 Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.5: The "generic" usb-serial driver is only for testing and one-off prototypes. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.5: Tell linux-usb@xxxxxxxxxxxxxxx to add your device to a proper driver. Mai 08 12:57:21 fedora22laptop kernel: usbserial_generic 1-6:1.5: generic converter detected So my question is: Is there a better driver for my UMTS-Modem mentioned above or do you have to implement one first? Kind Regards from Germany, John -- 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