SBNI(4) i386 Kernel Interfaces Manual 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 mod- els: * 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 autode- tected 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 The sbni device driver first appeared in FreeBSD 4.6. AUTHORS The sbni device driver for FreeBSD 4.x was written by Denis I. Timofeev, partially based on David Greenman's ed(4) driver. Earlier versions (avail- able on ftp.granch.com) were written by Alexey V. Zverev. SBNI12 hardware was designed by Alexey V. Chirkov. FreeBSD 15.1 January 8, 2002 SBNI(4)
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