.\"
.\" Copyright (c) 2000,2001 Søren Schmidt
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" SUCH DAMAGE.
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.\" $FreeBSD$
.\"
.Dd May 17, 2001
.Dt ATACONTROL 8
.Os
.Sh NAME
.Nm atacontrol
.Nd ATA device driver control program
.Sh SYNOPSIS
.Nm
.Aq Ar command
.Ar channel Op Ar args
.Pp
.Nm
.Ic attach
.Ar channel
.Nm
.Ic detach
.Ar channel
.Nm
.Ic reinit
.Ar channel
.Nm
.Ic mode
.Ar channel
.Op Ar mastermode slavemode
.Nm
.Ic info
.Ar channel
.Nm
.Ic list
.Sh DESCRIPTION
.Nm
is a control program that provides the user access and control to the
.Fx
.Xr ata 4
subsystem.
.Pp
.Nm
can cause severe system crashes and loss of data if used improperly, please
exercise caution when using this command!
.Pp
.Nm
supports the following commands:
.Bl -tag -width "attach"
.It Ic attach
Attach an ATA
.Ar channel ,
devices on the channel are probed and attached as
is done on boot.
.It Ic detach
Detach an ATA
.Ar channel ,
devices on the channel are removed from the kernel,
and all outstanding transfers etc. are returned back to the system marked
as failed.
.It Ic reinit
Reinitialize an ATA
.Ar channel .
Both devices on the channel are reset and
initialized to the parameters the ATA driver has stored internally.
Devices that has gone bad and no longer responds to the probe, or devices
that has physically been removed are removed from the kernel.
Likewise
are devices that show up during a reset, probed and attached.
.It Ic mode
Without the two mode arguments the current transfer modes of both
devices are printed.
If the mode arguments are given, the ATA driver
is asked to change the transfer modes to those given.
The ATA driver
will reject modes that is not supported by the hardware.
Modes are given like
.Dq Li PIO3 ,
.Dq Li udma2 ,
.Dq Li udma100 ,
case does not matter.
If one of the devices mode should not be changed, use a nonexisting mode
as argument (i.e.\&
.Dq Li XXX ) ,
and the mode will remain unchanged.
.It Ic info
Show info about the attached devices on the
.Ar channel ,
currently only the device
name and manufacture/version strings are shown.
.It Ic list
Show info about all attached devices on all active controllers.
.El
.Sh SEE ALSO
.Xr ata 4
.Sh HISTORY
The
.Nm
utility first appeared in
.Fx 5.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
utility was written by
.An S\(/oren Schmidt
.Aq sos@FreeBSD.org .
.Pp
This manual page was written by
.An S\(/oren Schmidt
.Aq sos@FreeBSD.org .