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$FreeBSD: releng/11.0/share/man/man4/man4.i386/sbni.4 236443 2012-06-02 11:03:14Z joel $
.Dd January 8, 2002 .Dt SBNI 4 i386 .Os .Sh NAME .Nm sbni .Nd Granch SBNI12 leased line modem driver .Sh SYNOPSIS .Cd "device sbni" .Sh DESCRIPTION The .Nm driver provides support for leased line modems of following models:
p l -bullet -compact t SBNI12-02, SBNI12D-02 t SBNI12-04, SBNI12D-04 t SBNI12-05, SBNI12D-05, ISA and PCI t SBNI12-10, SBNI12D-10, ISA and PCI .El
p and a kit for data link over a voice band: l -bullet t SBNI12-11, SBNI12D-11, ISA and PCI. .El
p In addition to the standard port and IRQ specifications, the .Nm driver also supports a number of .Va flags which can set baud rate, receive level, and low three bytes of Ethernet MAC-address (high three are always .Li 00:ff:01 ) , because Granch modems are presented to the system as Ethernet-like network cards.
p The high byte of the .Va flags is a bit field, it is used to specify SBNI adapter receive level/baud rate: l -tag -width "Bits 0-3:" -offset indent t "Bits 0-3:" receive level (0x00..0x0f) t "Bits 4-5:" baud rate number:
p l -inset -compact t "00 -" 0 baud rate (2Mb in fast mode/500kb in slow) t "01 -" 1 baud rate (1Mb/250kb) t "10 -" 2 baud rate (500kb/125kb) t "11 -" 3 baud rate (250kb/62.5kb) .El t "Bit 6:" use fixed receive level
p if bit 6 is set then receive level will be set according to bits 0-3 value, otherwise receive level will be autodetected t "Bit 7:" use fixed baud rate
p if bit 7 is set then baud rate will be set according to bits 4-5 value, otherwise baud rate is set to 2Mb .El .Sh FILES The sources for the driver reside in:
p l -tag -width ".Pa /sys/dev/sbni/if_sbni.c" -compact t Pa /sys/dev/sbni/if_sbni.c t Pa /sys/dev/sbni/if_sbnireg.h t Pa /sys/dev/sbni/if_sbnivar.h .El .Sh SEE ALSO .Xr arp 4 , .Xr netintro 4 , .Xr ifconfig 8 .Sh HISTORY The .Nm device driver first appeared in .Fx 4.6 . .Sh AUTHORS .An -nosplit The .Nm device driver for .Fx 4.x was written by .An Denis I. Timofeev , partially based on .An David Greenman Ns 's .Xr ed 4 driver. Earlier versions (available on
a ftp.granch.com ) were written by .An Alexey V. Zverev .
p SBNI12 hardware was designed by .An Alexey V. Chirkov .