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Man Pages


Manual Reference Pages  -  DEVCLASS (9)

NAME

devclass - object representing a class of devices

CONTENTS

Synopsis
Description
See Also
Authors

SYNOPSIS


.Vt typedef struct devclass *devclass_t ;

DESCRIPTION

The
.Vt 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
.Vt 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
.Vt 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
.An Doug Rabson .
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