DEVCLASS_FIND(9) BSD Kernel Developer's Manual DEVCLASS_FIND(9)NAME
devclass_find -- search for a devclass
SYNOPSIS
#include <sys/param.h>
#include <sys/bus.h>
devclass_t
devclass_find(const char *classname);
DESCRIPTION
Search for the devclass with the specified name.
RETURN VALUES
If the devclass exists, it is returned, otherwise NULL is returned.
SEE ALSO devclass(9)AUTHORS
This manual page was written by Doug Rabson.
BSD June 16, 1998 BSD
Check Out this Related Man Page
DEVCLASS(9) BSD 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 device instances.
Beware that this means devclass must be the same for different bus attachments 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.
BSD June 16, 1998 BSD
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