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SBNI (4) | Special files and drivers | Unix Manual Pages | :man

NAME

sbni - Granch SBNI12 leased line modem driver

CONTENTS

Synopsis
Description
Files
See Also
History
Authors

SYNOPSIS


.Cd "device sbni"

DESCRIPTION

The sbni driver provides support for leased line modems of following models:

  • SBNI12-02, SBNI12D-02
  • SBNI12-04, SBNI12D-04
  • SBNI12-05, SBNI12D-05, ISA and PCI
  • SBNI12-10, SBNI12D-10, ISA and PCI

and a kit for data link over a voice band:

  • SBNI12-11, SBNI12D-11, ISA and PCI.

In addition to the standard port and IRQ specifications, the sbni driver also supports a number of flags which can set baud rate, receive level, and low three bytes of Ethernet MAC-address (high three are always 00:ff:01), because Granch modems are presented to the system as Ethernet-like network cards.

The high byte of the flags is a bit field, it is used to specify SBNI adapter receive level/baud rate:

"Bits 0-3:"
receive level (0x00..0x0f)
"Bits 4-5:"
baud rate number:

"00 -" 0 baud rate (2Mb in fast mode/500kb in slow)
"01 -" 1 baud rate (1Mb/250kb)
"10 -" 2 baud rate (500kb/125kb)
"11 -" 3 baud rate (250kb/62.5kb)
"Bit 6:" use fixed receive level

if bit 6 is set then receive level will be set according to bits 0-3 value, otherwise receive level will be autodetected

"Bit 7:" use fixed baud rate

if bit 7 is set then baud rate will be set according to bits 4-5 value, otherwise baud rate is set to 2Mb

FILES

The sources for the driver reside in:

/sys/dev/sbni/if_sbni.c
/sys/dev/sbni/if_sbnireg.h
/sys/dev/sbni/if_sbnivar.h

SEE ALSO

arp(4), netintro(4), ifconfig(8)

HISTORY

AUTHORS

ed(4)


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