ctau — driver for synchronous Cronyx Tau WAN adapters

       The ctau driver is not present in FreeBSD 13.0 and later.

       The  ctau  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  ctau  driver
       will be compiled with netgraph(4) support.  Otherwise, it will be compiled with sppp(4) support.

       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:  0x200,  0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0,
              0x3c0, 0x3e0
       IRQ:   3, 5, 7, 10, 11, 12, 15
       DMA:   5, 6, 7

       The ctau 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 ctau adapter configuration.

       The ctau driver supports the following cards:

       •   Cronyx Tau (RS-232/V.35)
       •   Cronyx Tau/R (RS-530/RS-449)
       •   Cronyx Tau/E1 (fractional E1)
       •   Cronyx Tau/G703 (unframed E1)

       The  ctau  driver  was  added  in FreeBSD 5.3 and FreeBSD 4.10.  The ctau driver for previous versions of
       FreeBSD is available from http://www.cronyx.ru/.

Debian                                            March 2, 2020                                          CTAU(4)

       ctau — driver for synchronous Cronyx Tau WAN adapters

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

devicectau

       Additional options:
       devicespppoptionsNETGRAPHoptionsNETGRAPH_CRONYX

       In /boot/device.hints:
       hint.ctau.0.at="isa"hint.ctau.0.port="0x240"hint.ctau.0.irq="15"hint.ctau.0.drq="7"