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3 Configuring the cy driver

Contributed by Alex Nash. 6 June 1996.

The Cyclades multiport cards are based on the cy driver instead of the usual sio driver used by other multiport cards. Configuration is a simple matter of:

  1. Add the cy device to your kernel configuration (note that your irq and iomem settings may differ).

        device cy0 at isa? irq 10 iomem 0xd4000 iosiz 0x2000
  2. Rebuild and install the new kernel.

  3. Make the device nodes by typing (the following example assumes an 8-port board):

        # cd /dev
        # for i in 0 1 2 3 4 5 6 7;do ./MAKEDEV cuac$i ttyc$i;done
  4. If appropriate, add dialup entries to /etc/ttys by duplicating serial device (ttyd) entries and using ttyc in place of ttyd. For example:

        ttyc0   "/usr/libexec/getty std.38400"  unknown on insecure
        ttyc1   "/usr/libexec/getty std.38400"  unknown on insecure
        ttyc2   "/usr/libexec/getty std.38400"  unknown on insecure
        ttyc7   "/usr/libexec/getty std.38400"  unknown on insecure
  5. Reboot with the new kernel.

This, and other documents, can be downloaded from

For questions about FreeBSD, read the documentation before contacting <>.
For questions about this documentation, e-mail <>.

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