These functions can be used to add new drivers into the system, remove old ones and search for existing ones. Normally drivers are added automatically during system initialisation.
These functions can be used to add new drivers into the system, remove old ones and search for existing ones. Normally drivers are added automatically during system initialisation.
Retrieve a list of all device instances currently in the devclass and return the list in *devlistp and the count in *devcountp. The memory allocated for the list should be freed using free(*devlistp, ...
The device object represents a piece of hardware attached to the system such as an expansion card, the bus which that card is plugged into, disk drives attached to the expansion card etc. The system d...
The devstat subsystem is an interface for recording device statistics, as its name implies. The idea is to keep reasonably detailed statistics while utilizing a minimum amount of CPU time to record th...
Create a new child device of dev. The name and unit arguments specify the name and unit number of the device. If the name is unknown then the caller should pass NULL. If the unit is unknown then the c...
Create a new child device of dev. The name and unit arguments specify the name and unit number of the device. If the name is unknown then the caller should pass NULL. If the unit is unknown then the c...
Attach a device to the system. The probe method will have been called and will have indicated that the device exists. This routine should initialise the hardware and allocate other system resources (s...
The current state of a device is accessed by calling device_get_state() which returns DS_NOTPRESENT, DS_ALIVE, DS_ATTACHED or DS_BUSY (described in device(9)). To test see if a device was successfully...
The specified device is removed from dev and deleted. If the device is currently attached, it is first detached (see DEVICE_ATTACH(9) and DEVICE_DETACH(9)).
