usb_hcd_poll_rh_status, 531. hub_events enter... hub 1-:1.0: state 7 ports 2 chg 0000 evt 0004 hub 1-:1.0: after hub_port_connect_change hub 1-:1.0: port 2, status 0501, change 0001, 480 Mb/s hub 1-:1.0: debounce: port 2: total 100ms stable 100ms status 0x501 hub 1-:1.0: after hub_port_connect_change hub_events exit. usb_hcd_poll_rh_status, 531. usb_hcd_poll_rh_status, 531. hub_events enter... hub 1-:1.0: state 7 ports 2 chg 0000 evt 0004 hub 1-:1.0: after hub_port_connect_change hub 1-:1.0: port 2, status 0000, change 0001, 12 Mb/s hub 1-:1.0: debounce: port 2: total 1500ms stable 0ms status 0x0 hub 1-:1.0: connect-debounce failed, port 2 disabled hub 1-:1.0: after hub_port_connect_change hub 3-:1.0: state 7 ports 1 chg 0000 evt 0002 hub 3-:1.0: port 1, status 0101, change 0001, 12 Mb/s hub 3-:1.0: debounce: port 1: total 100ms stable 100ms status 0x101 usb 3-1: new full speed USB device using gx-ohci and address 2 <3>gx-ohci: ohci_endpoint_disable, 244, ed is null. usb 3-1: ep0 maxpacket = 8 <3>gx-ohci: ohci_endpoint_disable, 244, ed is null. <3>gx-ohci: ohci_endpoint_disable, 244, ed is null. usb 3-1: default language 0x0409 usb 3-1: wrong descriptor type 3a for string 3 ("????") usb 3-1: new device strings: Mfr=1, Product=2, SerialNumber=3 usb 3-1: usb_probe_device usb 3-1: configuration #1 chosen from 1 choice usb 3-1: adding 3-1:1.0 (config #1, interface 0) dm9601 3-1:1.0: usb_probe_interface dm9601 3-1:1.0: usb_probe_interface - got id USB Net Device dm9601 0a46:9601 found. <3>gx-ohci: ohci_endpoint_disable, 244, ed is null. <3>gx-ohci: ohci_endpoint_disable, 244, ed is null. <3>gx-ohci: ohci_endpoint_disable, 244, ed is null. mac : 00 : 00 : 00 : 00 : d7 : 78 01 00 5e 00 00 01 DM9601 Based USB 2.0 Ethernet Adapters:v11-Jul-2013 18:27:55 Nov 13 2019 dev->rx_urb_size = 1521 <3>usbnet_probe finish hub 3-:1.0: after hub_port_connect_change hub_events exit. hub_events enter... hub_events exit. [USBNET HOTPLUG] PLUG_IN: 0 USB eth Hotplug in!! usb_hcd_poll_rh_status, 531. Davicom DM9601 USB Ethernet Link Status : ok NET, GET MAC = SIOCSIFFLAGS err ! errno is 300 SIOCDIFADDR error ! network_init, dev : eth1 [WAIT SEM]______tdhcp_lease_______ eth1: Initializing device to use DHCP. SIOCSIFADDR: Device not configured SIOCDIFADDR error !