Copyright (c) 1998 The NetBSD Foundation, Inc.
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This code is derived from software contributed to The NetBSD Foundation
by Ken Hornstein.
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.Dd November 18, 1998 .Dt WDCTL 8 .Os NetBSD .Sh NAME .Nm atactl .Nd a program to manipulate ATA (IDE) devices .Sh SYNOPSIS .Nm .Ar device .Ar command .Oo .Ar arg Oo ... .Oc .Oc .Sh DESCRIPTION .Nm allows a user or system administrator to issue commands to and otherwise control devices which reside on standard IDE and ATA controllers. It is used by specifying a device to manipulate, the command to perform, and any arguments the command may require. .Sh DEVICE COMMANDS The following commands may be used on IDE and ATA devices. Note that not all devices support all commands.
p .Nm identify
p Identify the specified device, displaying the device's vendor, product, revision strings, and the device's capabilities.
p .Nm idle
p Place the specified device into Idle mode. This mode may consume less power than Active mode.
p .Nm standby
p Place the specified device into Standby mode. This mode will consume less power than Idle mode.
p .Nm sleep
p Place he specified device into Sleep mode. This mode will consume less power than Standby mode, but requires a device reset to resume operation. Typically the .Xr wd 4 driver performs this reset automatically, but this should still be used with caution.
p .Nm setidle .Ar standby-timer
p Places the specified device into Idle mode, and sets the Standby timer to .Ar standby-timer seconds. A value of 0 will disable the Standby timer.
p .Nm setstandby .Ar standby-timer
p Places the specified device into Standby mode, and sets the Standby timer to .Ar standby-timer seconds. A value of 0 will disable the Standby timer.
p .Nm checkpower
p Will print out if the device is in Active, Idle, or Standby power management mode. .Sh BUGS The output from the .Nm identify command is rather ugly. .Sh SEE ALSO .Xr ioctl 2 , .Xr wd 4 , .Sh AUTHOR The .Nm command was written by Ken Hornstein. It was based heavily on the .Nm scsictl(8) command written by Jason R. Thorpe. .Sh HISTORY The .Nm command first appeared in .Nx 1.4 .