[  251.660678] usb 2-1.2.1: new low-speed USB device number 7 using ehci-pci
[  251.776050] usb 2-1.2.1: config 1 interface 1 altsetting 0 endpoint 0x1 is Bulk; changing to Interrupt
[  251.776057] usb 2-1.2.1: config 1 interface 1 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt
[  251.783046] usb 2-1.2.1: New USB device found, idVendor=16c0, idProduct=05e1, bcdDevice= 1.00
[  251.783051] usb 2-1.2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  251.783054] usb 2-1.2.1: Product: AVR-Doper
[  251.783057] usb 2-1.2.1: Manufacturer: obdev.at
[  251.783059] usb 2-1.2.1: SerialNumber: avrdoper
[  251.784228] cdc_acm 2-1.2.1:1.0: ttyACM0: USB ACM device