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Data Structures for Driversdev_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
Determine if a driver is associated with a device. See identify(9E).
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), identify(9E), probe(9E), power(9E), nodev(9F)

Writing Device Drivers



SunOS 5.9Go To TopLast Changed 24 Jun 1997


Updated: 2004-01-16, 20:06