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solaris:dev_ops.9s

dev_ops


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This entry point is obsolete.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. 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).

devo_quiesce

Quiesce a device attached to system (see quiesce(9E) for more information). This can be set to ddi_quiesce_not_needed() if the driver does not need to implement quiesce.

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);
int (*devo_quiesce)(dev_info_t *dip);

SEE ALSO

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

Writing Device Drivers in Oracle Solaris 11.4


solaris/dev_ops.9s.txt · Last modified: 2023/07/19 08:58 by A User Not Logged in