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UDBP(4)                  BSD Kernel Interfaces Manual                  UDBP(4)

     udbp -- USB Double Bulk Pipe driver

     device udbp

     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 <ambriskoATwhistle.com>,
     Julian Elischer <julianATFreeBSD.org> and Nick Hibma

     This manual page was written by Nick Hibma <n_hibmaATFreeBSD.org>.

BSD                             April 30, 2000                             BSD