freebsd-dev/share/man/man4/snc.4

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.Dd June 21, 2004
.Dt SNC 4
.Os
.Sh NAME
.Nm snc
.Nd National Semiconductor DP8393X SONIC Ethernet adapter driver
.Sh SYNOPSIS
.Cd device isa
.Cd device snc
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Tn National
.Tn Semiconductor
.Tn SONIC
Ethernet adapters.
This currently supports the following card models:
.Pp
.Bl -item -compact
.It
National Semiconductor DP83934AVQB
.It
NEC PC-9801N-15
.It
NEC PC-9801-84
.It
NEC PC-9801-83
.It
NEC PC-9801-104
.It
NEC PC-9801-103
.It
NEC PC-9801N-J02R PCMCIA
.It
NEC PC-9801N-J02 PCMCIA
.El
.Pp
The
.Nm
driver also includes support for the
.Tn National
.Tn Semiconductor
.Tn NS46C46
as
64 * 16 bits Microwave Serial
.Tn EEPROM .
.Sh IMPLEMENTATION NOTES
Accessing
.Tn SONIC
card data structures and registers as 32 bit values
makes code endianess independent.
The
.Tn SONIC
is; however always in bigendian mode so it is necessary to
ensure that data structures shared
between the
.Tn CPU
and the
.Tn SONIC
card are always in bigendian order.
The
.Nm
driver supports the
.Tn PC-98
C-Bus,
and
.Tn PnP
buses.
Support is also provided for legacy C-Bus.
.Sh ERRORS
The following driver specific error messages
may be reported:
.Bl -tag -width Er
.It Bq Er EIO
May be returned if the device cannot allocate a port,
memory resource, or
.Tn IRQ
with the given resource ID.
.It Bq Er ENOENT
May be returned if the driver cannot assign memory, a port or an
.Tn IRQ
to the board.
.It Bq Er ENXIO
May be returned if the card supplied a
.Tn PnP
ID which did not match any of the known IDs.
.El
.Sh SEE ALSO
.Xr card 4 ,
.Xr netintro 4 ,
.Xr bus_alloc_resource_any 9
.Sh HISTORY
The
.Nm
driver was ported from
.Nx
by
.An -nosplit
.An Motomichi Matsuzaki Aq mzaki@e-mail.ne.jp
and
.An Hiroshi Yamashita Aq bluemoon@msj.biglobe.ne.jp .
It first appeared in
.Fx 4.2 .
This manual page first appeared in
.Fx 5.3 .
.Sh AUTHORS
This manual page was written by
.An Tom Rhodes Aq trhodes@FreeBSD.org .
.Sh BUGS
Currently the
.Nm
driver only works on the
.Tn PC-98
architecture.
It should probably work on the i386 architecture
as well.