DESCRIPTION
The
drvctl program works with the
drvctl(4) pseudo-driver, and allows to rescan busses and to detach drivers from devices.
The following options are available:
-
-a
-
Give the interface attribute where children are to be attached to (and which defines the interpretation of the locator information). This will only be needed in rare cases where the bus has multiple attributes.
-
-d
-
Detach the device driver from the device given by the device argument.
-
-l
-
List the children of the device specified by the device argument. If device is not specified, list roots of the device tree instead. Output comes in two columns. The first column is device, or “root” if device is not specified. The second column is the child.
-
-n
-
Suppress first column in -l output.
-
-p
-
Get properties for the device specified by the device argument. If property is specified, the value of that property is printed, otherwise the properties are displayed as an XML property list.
-
-Q
-
Resume the ancestors of device, device itself, and all of its descendants.
-
-R
-
Resume both the ancestors of device and device itself.
-
-r
-
Rescan the bus given by the busdevice argument. The scan range can be restricted by an optional locator list.
-
-S
-
Suspend both the descendants of device and device itself.
-
-t
-
Print a tree of devices in -l output.