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SBNI(4) FreeBSD Kernel Interfaces Manual (i386) SBNI(4) NAME sbni - Granch SBNI12 leased line modem driver SYNOPSIS device sbni DESCRIPTION The sbni driver provides support for leased line modems of following models: o SBNI12-02, SBNI12D-02 o SBNI12-04, SBNI12D-04 o SBNI12-05, SBNI12D-05, ISA and PCI o SBNI12-10, SBNI12D-10, ISA and PCI and a kit for data link over a voice band: o 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) (available on ftp.granch.com) were written by Alexey V. Zverev. SBNI12 hardware was designed by Alexey V. Chirkov. FreeBSD 14.0-RELEASE-p6 January 8, 2002 FreeBSD 14.0-RELEASE-p6