FreeBSD 7.0 manual page repository

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udbp - USB Double Bulk Pipe driver



      udbp - USB Double Bulk Pipe driver


      To compile this driver into the kernel, place the following line in your
      kernel configuration file:
            device udbp
      Alternatively, to load the driver as a module at boot time, place the
      following line in loader.conf(5):


      The udbp driver provides support for host-to-host cables that contain at
      least two bulk pipes (one for each direction), for example the EzLink
      cable and the NetChip 1080 chip.
      It requires netgraph(4) to be available.  This can be done either by
      adding options NETGRAPH to your kernel configuration file, or alterna‐
      tively loading netgraph(4) as a module, either from /boot/loader.conf or
      from the command line, before the udbp module.


            options NETGRAPH
            device udbp
      Add the udbp driver to the kernel.
            kldload netgraph
            kldload udbp
      Load the netgraph(4) module and then the udbp driver.
            ngctl mkpeer udbp0: iface data inet
            ifconfig ng0
      Create a new network interface node and connect its inet hook to the data
      hook of the udbp node.  ifconfig(8) configures the resulting network
      interface ng0 with a local IP address of and a remote IP address
      of  On the remote host, the two IP addresses should of course
      be reversed.
      netgraph(4), ng_iface(4), ohci(4), uhci(4), usb(4), ngctl(8)


      The udbp driver first appeared in FreeBSD 5.0.


      The udbp driver was written by Doug Ambrisko 〈〉,
      Julian Elischer 〈〉 and Nick Hibma
      This manual page was written by Nick Hibma 〈〉.


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.