— object representing a class
typedef struct devclass *devclass_t
object has two main functions in the system.
The first is to manage the allocation of unit numbers for device instances and
the second is to hold the list of device drivers for a particular bus type.
has a name and there cannot be two
devclasses with the same name. This ensures that unique unit numbers are
allocated to device instances.
Beware that this means devclass
must be the same for
different bus attachments of the same device driver.
This manual page was written by Doug Rabson