CX(4)                   /i386 Kernel Interfaces Manual                   CX(4)

     cx — driver for synchronous/asynchronous Cronyx Sigma WAN adapters

     To compile this driver into the kernel, place the following line in your
     kernel configuration file:

           device cx

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):


     Additional options:
     device sppp
     options NETGRAPH
     options NETGRAPH_CRONYX

     In /boot/device.hints:"isa""0x240""15""7"

     The cx driver needs either sppp(4) or netgraph(4).  Which one to use is
     determined by the NETGRAPH_CRONYX option.  If this option is present in
     your kernel configuration file, the cx driver will be compiled with
     netgraph(4) support.  Otherwise, it will be compiled with sppp(4)

     The base I/O port address specified in /boot/device.hints must match the
     port address set by the jumpers on the board.  The DMA I/O channel and
     interrupt request numbers are configured by software at adapter
     initialization.  Legal values are:

     Port:  0x240, 0x260, 0x280, 0x300, 0x320, 0x380
     IRQ:   3, 5, 7, 10, 11, 12, 15
     DMA:   5, 6, 7

     The cx driver supports autodetection.  As for all non-PNP hardware, using
     autodetection could lead to some potential problems with other devices
     during the hardware detection process.  It is always better to specify
     hardware resources manually.

     Refer to sconfig(8) for information about the cx adapter configuration.

     The cx driver supports the following cards:

     ·   Cronyx Sigma-22, Sigma-24
     ·   Cronyx Sigma-100
     ·   Cronyx Sigma-400, Sigma-401, Sigma-404, Sigma-410, Sigma-440
     ·   Cronyx Sigma-500
     ·   Cronyx Sigma-703
     ·   Cronyx Sigma-800, Sigma-801, Sigma-810, Sigma-840

     cp(4), ctau(4), sppp(4), ifconfig(8), sconfig(8), spppcontrol(8)

     The cx driver was updated in FreeBSD 5.2 and FreeBSD 4.10.  In most of
     the previous versions of FreeBSD the cx driver is out of date.  The cx
     driver for previous versions of FreeBSD is available from

                                 July 16, 2005