![via xhci host controller driver v1.80b via xhci host controller driver v1.80b](https://i.ytimg.com/vi/9itoN3x-4n0/maxresdefault.jpg)
usb 3-1.1: New USB device found, idVendor=152d, idProduct=0561 usb 3-1.1: new high-speed USB device number 3 using xhci-hcd usbcore: registered new interface driver usbhid usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 4-1: New USB device found, idVendor=05e3, idProduct=0616 usb 4-1: new SuperSpeed USB device number 2 using xhci-hcd
![via xhci host controller driver v1.80b via xhci host controller driver v1.80b](https://www.minitool.com/images/uploads/articles/2019/03/usb-keeps-disconnecting/usb-keeps-disconnecting-2.png)
usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 3-1: New USB device found, idVendor=05e3, idProduct=0610 usb 3-1: new high-speed USB device number 2 using xhci-hcd usb usb6: Manufacturer: Linux 4.14.73-136 xhci-hcd usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb6: New USB device found, idVendor=1d6b, idProduct=0003
![via xhci host controller driver v1.80b via xhci host controller driver v1.80b](https://i.imgur.com/IOhzS9L.png)
usb usb6: We don't know the algorithms for LPM for this host, disabling LPM. xhci-hcd xhci-hcd.6.auto: Host supports USB 3.0 SuperSpeed xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 6
![via xhci host controller driver v1.80b via xhci host controller driver v1.80b](https://s3.manualzz.com/store/data/025792109_1-76b58bdfb828ea10166ac295ec9c29ef.png)
usb usb5: Manufacturer: Linux 4.14.73-136 xhci-hcd usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb5: New USB device found, idVendor=1d6b, idProduct=0002 xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 5 usb usb4: Manufacturer: Linux 4.14.73-136 xhci-hcd usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb4: New USB device found, idVendor=1d6b, idProduct=0003 usb usb4: We don't know the algorithms for LPM for this host, disabling LPM. xhci-hcd xhci-hcd.3.auto: Host supports USB 3.0 SuperSpeed xhci-hcd xhci-hcd.3.auto: new USB bus registered, assigned bus number 4 usb usb3: Manufacturer: Linux 4.14.73-136 xhci-hcd usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb3: New USB device found, idVendor=1d6b, idProduct=0002 xhci-hcd xhci-hcd.3.auto: new USB bus registered, assigned bus number 3 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-1: New USB device found, idVendor=046d, idProduct=c52b usb 2-1: new full-speed USB device number 2 using exynos-ohci usb usb2: Manufacturer: Linux 4.14.73-136 ohci_hcd usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: New USB device found, idVendor=1d6b, idProduct=0001 exynos-ohci b: new USB bus registered, assigned bus number 2 ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver usb usb1: Manufacturer: Linux 4.14.73-136 ehci_hcd usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 exynos-ehci b: USB 2.0 started, EHCI 1.00 exynos-ehci b: new USB bus registered, assigned bus number 1 ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver usbcore: registered new interface driver cdc_subset usbcore: registered new interface driver cdc_ether usbcore: registered new interface driver r8152 exynos5_usb3drd_phy 12500000.phy: 12500000.phy supply vbus-boost not found, using dummy regulator exynos5_usb3drd_phy 12500000.phy: 12500000.phy supply vbus not found, using dummy regulator exynos5_usb3drd_phy 12100000.phy: 12100000.phy supply vbus-boost not found, using dummy regulator exynos5_usb3drd_phy 12100000.phy: 12100000.phy supply vbus not found, using dummy regulator samsung-usb2-phy 12130000.phy: 12130000.phy supply vbus not found, using dummy regulator usbcore: registered new device driver usb usbcore: registered new interface driver hub usbcore: registered new interface driver usbfs