device_enable, device_disable, device_is_enabled - manipulate device enabled flag
Synopsis Description See Also Authors
.In sys/param.h .In sys/bus.h void device_enable "device_t dev" void device_disable "device_t dev" int device_is_enabled "device_t dev"
Each device has an enabled flag associated with it. A device is enabled by default when it is created but may be disabled (for instance to prevent a destructive or time consuming probe attempt). To disable a device, call device_disable, to re-enable it, call device_enable and to test to see if a device is enabled, call device_is_enabled.