well, this does not work in Maveric with /Ubuntu 2.6.35-25.44-generic 2.6.35.10/ either
- the "Unable to write latency timer: -32" error from dmesg is gone now, but the port seem to hang after a few commands are send through successfully and only a reboot brings it back to life - though again just for a few commands.

root@area73:~# cat /proc/version_signature
Ubuntu 2.6.35-25.44-generic 2.6.35.10
root@area73:~# dmesg|tail
[    5.614172] type=1400 audit(1296350133.003:9): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=852 comm="apparmor_parser"
[    5.615221] type=1400 audit(1296350133.003:10): apparmor="STATUS" operation="profile_load" name="/usr/sbin/cupsd" pid=852 comm="apparmor_parser"
[    5.701769] input: HDA Intel Mic at Ext Front Jack as /devices/pci0000:00/0000:00:1b.0/sound/card0/input5
[    5.702070] input: HDA Intel HP Out at Ext Front Jack as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6
[    5.842302] ppdev: user-space parallel port driver
[    6.854876] jme 0000:02:00.5: eth0: Link is up at ANed: 100 Mbps, Full-Duplex, MDI.
[    6.855765] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    7.625367] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,usrjquota=aquota.user,jqfmt=vfsv0,commit=0
[    7.749133] ===>rtllib_wx_set_power(): power disable
[   17.824088] eth0: no IPv6 routers present
root@area73:~# lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 0403:e0e8 Future Technology Devices International, Ltd
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@area73:~# lsusb -d 0403:e0e8 -v

Bus 004 Device 002: ID 0403:e0e8 Future Technology Devices International, Ltd
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x0403 Future Technology Devices International, Ltd
  idProduct          0xe0e8
  bcdDevice            2.00
  iManufacturer           1 ELV AG
  iProduct                2 ELV FHZ 1300 PC
  iSerial                 3 EL64JQYI
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower               44mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              2 ELV FHZ 1300 PC
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
Device Status:     0x0000
  (Bus Powered)
root@area73:~#