dev_ops(9S)						    Data Structures for Drivers 					       dev_ops(9S)

NAME

       dev_ops - device operations structure

SYNOPSIS

       #include <sys/conf.h>
       #include <sys/devops.h>

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

DESCRIPTION

       dev_ops contains driver common fields and pointers to the bus_ops and cb_ops(9S).

       Following are the device functions provided in the device operations structure.	All fields must be set at compile time.

       devo_rev 	       Driver build version. Set this to DEVO_REV.

       devo_refcnt	       Driver reference count. Set this to 0.

       devo_getinfo	       Get device driver information (see getinfo(9E)).

       devo_identify	       This entry point is obsolete. Set to nulldev.

       devo_probe	       Probe device. See probe(9E).

       devo_attach	       Attach driver to dev_info. See attach(9E).

       devo_detach	       Detach/prepare driver to unload. See detach(9E).

       devo_reset	       Reset device. (Not supported in this release.) Set this to nodev.

       devo_cb_ops	       Pointer to cb_ops(9S) structure for leaf drivers.

       devo_bus_ops	       Pointer to bus operations structure for nexus drivers. Set this to NULL if this is for a leaf driver.

       devo_power	       Power a device attached to system. See power(9E).

STRUCTURE MEMBERS

       int		devo_rev;
       int		devo_refcnt;
       int		(*devo_getinfo)(dev_info_t *dip,
			ddi_info_cmd_t infocmd, void *arg, void **result);
       int		(*devo_identify)(dev_info_t *dip);
       int		(*devo_probe)(dev_info_t *dip);
       int		(*devo_attach)(dev_info_t *dip,
			ddi_attach_cmd_t cmd);
       int		(*devo_detach)(dev_info_t *dip,
			ddi_detach_cmd_t cmd);
       int		(*devo_reset)(dev_info_t *dip, ddi_reset_cmd_t cmd);
       struct cb_ops	*devo_cb_ops;
       struct bus_ops	*devo_bus_ops;
       int		(*devo_power)(dev_info_t *dip, int component, int level);

SEE ALSO

       attach(9E), detach(9E), getinfo(9E), probe(9E), power(9E), nodev(9F)

       Writing Device Drivers

SunOS 5.10							    11 Apr 2003 						       dev_ops(9S)