Zasílám výpis s připojeným modemem do USB 2.0:
petr@petr-Vostro-270:~$ dmesg | grep "USB" | tail -25
[ 1928.245586] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.245835] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.246929] option1 ttyUSB0: option_instat_callback: error -108
[ 1928.247135] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 1928.249844] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.250094] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.254097] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.254346] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.258352] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.258599] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.265627] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1928.265719] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 1945.870220] usb 1-1.2: new high-speed USB device number 8 using ehci-pci
[ 1945.964830] usb 1-1.2: New USB device found, idVendor=12d1, idProduct=1520
[ 1945.964835] usb 1-1.2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[ 1945.966011] usb-storage 1-1.2:1.0: USB Mass Storage device detected
[ 1947.211037] usb 1-1.2: USB disconnect, device number 8
[ 1951.765254] usb 1-1.2: new high-speed USB device number 9 using ehci-pci
[ 1951.859840] usb 1-1.2: New USB device found, idVendor=12d1, idProduct=1465
[ 1951.859845] usb 1-1.2: New USB device strings: Mfr=4, Product=3, SerialNumber=0
[ 1951.862949] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 1951.864583] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 1951.864736] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
[ 1951.864794] usb-storage 1-1.2:1.5: USB Mass Storage device detected
[ 1951.865022] usb-storage 1-1.2:1.6: USB Mass Storage device detected
Nyní to samé do USB 3.0
petr@petr-Vostro-270:~$ dmesg | grep "USB" | tail -25
[ 1928.258599] option1 ttyUSB2: usb_wwan_indat_callback: resubmit read urb failed. (-19)
[ 1928.265627] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1928.265719] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 1945.870220] usb 1-1.2: new high-speed USB device number 8 using ehci-pci
[ 1945.964830] usb 1-1.2: New USB device found, idVendor=12d1, idProduct=1520
[ 1945.964835] usb 1-1.2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[ 1945.966011] usb-storage 1-1.2:1.0: USB Mass Storage device detected
[ 1947.211037] usb 1-1.2: USB disconnect, device number 8
[ 1951.765254] usb 1-1.2: new high-speed USB device number 9 using ehci-pci
[ 1951.859840] usb 1-1.2: New USB device found, idVendor=12d1, idProduct=1465
[ 1951.859845] usb 1-1.2: New USB device strings: Mfr=4, Product=3, SerialNumber=0
[ 1951.862949] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 1951.864583] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 1951.864736] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
[ 1951.864794] usb-storage 1-1.2:1.5: USB Mass Storage device detected
[ 1951.865022] usb-storage 1-1.2:1.6: USB Mass Storage device detected
[ 2025.382357] usb 1-1.2: USB disconnect, device number 9
[ 2025.384574] option1 ttyUSB0: option_instat_callback: error -108
[ 2025.384744] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 2025.407930] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 2025.408918] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 2047.649774] usb 3-1: new high-speed USB device number 3 using xhci_hcd
[ 2047.668122] usb 3-1: New USB device found, idVendor=12d1, idProduct=1520
[ 2047.668127] usb 3-1: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[ 2047.669270] usb-storage 3-1:1.0: USB Mass Storage device detected