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.\" $FreeBSD: src/share/man/man4/smb.4,v 1.6.2.2 2001/08/17 13:08:39 ru Exp $
.\" $DragonFly: src/share/man/man4/smb.4,v 1.2 2003/06/17 04:36:59 dillon Exp $
.\"
.Dd October 25, 1998
.Dt SMB 4
.Os
.Sh NAME
.Nm smb
.Nd SMB generic I/O device driver
.Sh SYNOPSIS
.Cd "device smb"
.Sh DESCRIPTION
The
.Em smb
character device driver provides generic i/o to any
.Xr smbus 4
instance.
In order to control SMB devices, use /dev/smb? with the
following ioctls:
.Pp
.Bl -column "System Management Bus ioctls" -compact
.It Em Ioctl Ta Em Description
.It Dv SMB_QUICK_WRITE Ta "QuickWrite command"
.It Dv SMB_QUICK_READ Ta "QuickRead command"
.It Dv SMB_SENDB Ta "SendByte command"
.It Dv SMB_RECVB Ta "ReceiveByte command"
.It Dv SMB_WRITEB Ta "WriteByte command"
.It Dv SMB_WRITEW Ta "WriteWord command"
.It Dv SMB_READB Ta "ReadByte command"
.It Dv SMB_READW Ta "ReadWord command"
.It Dv SMB_PCALL Ta "ProcedureCall command"
.It Dv SMB_BWRITE Ta "BlockWrite command"
.It Dv SMB_BREAD Ta "BlockRead command"
.El
.Pp
Using the write routine is equivalent to a
.Dv SMB_WRITEW
ioctl.
.Sh SEE ALSO
.Xr smbus 4
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 3.0 .
.Sh AUTHORS
This
manual page was written by
.An Nicolas Souchu .