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IOPCTL(8) System Manager's Manual IOPCTL(8)

iopctla program to control IOP devices

iopctl [-f device] command [tid]

The iopctl command can be used to interrogate and control I2O devices.

The following options are available:

Specify the control device to use. The default is /dev/iop0.

The following commands are available:

Reconfigure the IOP: ask all bus ports to rescan their buses, and attach or detach devices to and from the system as necessary.
showddmid tid
Retrieve and display the DDM (device driver module) identity parameter group from the specified target.
showdevid tid
Retrieve and display the device identity parameter group from the specified target.
Display the driver's private copy of the logical configuration table. This copy of the LCT matches the current device configuration, but is not necessarily the latest available version of the LCT.
Display the current status of the IOP.
Display the device to TID map.

control device for IOP unit u

ioctl(2), iop(4), ioprbs(4), iopsp(4), sd(4)

The iopctl command first appeared in NetBSD 1.6, OpenBSD support was added in OpenBSD 3.0.

The iopctl command was written by Andrew Doran ⟨⟩, and ported to OpenBSD by Michael Shalayeff ⟨⟩.

June 26, 2008 OpenBSD-5.1