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DEVCLASS(9) Kernel Developer's Manual DEVCLASS(9) NAME devclass -- object representing a class of devices SYNOPSIS typedef struct devclass *devclass_t; DESCRIPTION The devclass 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. Each devclass has a name and there cannot be two devclasses with the same name. This ensures that unique unit numbers are allocated to de- vice instances. Beware that this means devclass must be the same for different bus at- tachments of the same device driver. SEE ALSO devclass_add_driver(9), devclass_delete_driver(9), devclass_find(9), devclass_find_driver(9), devclass_get_device(9), devclass_get_devices(9), devclass_get_maxunit(9), devclass_get_name(9), devclass_get_softc(9), device(9), driver(9) AUTHORS This manual page was written by Doug Rabson. FreeBSD 13.2 June 16, 1998 DEVCLASS(9)
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