pvrusb2: **********
pvrusb2: WARNING: Support for this device (Terratec Grabster AV400) is experimental.
pvrusb2: Important functionality might not be entirely working.
pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver.
pvrusb2: **********
usb 1-1: USB disconnect, device number 102
usb 1-1: new high-speed USB device number 103 using dummy_hcd
usb 1-1: Using ep0 maxpacket: 8
usb 1-1: config index 0 descriptor too short (expected 2066, got 203)
usb 1-1: config 0 has an invalid interface number: 232 but max is 0
usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=ca.0a
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 1-1: string descriptor 0 read error: -71
pvrusb2: Hardware description: Terratec Grabster AV400
pvrusb2: **********
pvrusb2: WARNING: Support for this device (Terratec Grabster AV400) is experimental.
pvrusb2: Important functionality might not be entirely working.
pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver.
pvrusb2: **********
usb 1-1: USB disconnect, device number 103
usb 1-1: new high-speed USB device number 104 using dummy_hcd
usb 1-1: device descriptor read/64, error 18
usb 1-1: device descriptor read/64, error 18
usb 1-1: new high-speed USB device number 105 using dummy_hcd
usb 1-1: device descriptor read/64, error 18
usb 1-1: device descriptor read/64, error -32
usb usb1-port1: attempt power cycle
usb 1-1: new high-speed USB device number 106 using dummy_hcd
usb 1-1: Using ep0 maxpacket: 32
usb 1-1: config 0 has an invalid interface number: 188 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0545, idProduct=8080, bcdDevice= 0.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 4-1: new high-speed USB device number 106 using dummy_hcd
usb 4-1: Using ep0 maxpacket: 8
usb 4-1: config 0 has an invalid interface number: 221 but max is 0
usb 4-1: config 0 has no interface number 0
usb 4-1: New USB device found, idVendor=06e1, idProduct=0009, bcdDevice=99.80
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: config 0 descriptor??
kaweth 4-1:0.221: Firmware present in device.
kaweth 4-1:0.221: Error reading configuration (-71), no net device created
kaweth: probe of 4-1:0.221 failed with error -5
usb 4-1: USB disconnect, device number 106
usb 4-1: new high-speed USB device number 107 using dummy_hcd
usb 4-1: Using ep0 maxpacket: 8
usb 4-1: config 0 has an invalid interface number: 138 but max is 0
usb 4-1: config 0 has no interface number 0
usb 4-1: New USB device found, idVendor=0644, idProduct=8020, bcdDevice=b6.5f
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: config 0 descriptor??
disable ehci-hcd to run US-144 
usb 2-1: new high-speed USB device number 114 using dummy_hcd