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     devo_identify     This  entry  point  is  obsolete.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.




SunOS 5.11          Last change: 11 Apr 2003                    1






Data Structures for Drivers                           dev_ops(9S)



     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).  Can be set to
		       ddi_quiesce_not_needed(9F) if the driver does
		       not need to implement quiesce, or set to
		       ddi_quiesce_not_supported(9F) if the driver
		       cannot quiesce device to support fast-reboot.

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),  probe(9E),  power(9E), 
     quiesce(9E), nodev(9F), ddi_quiesce_not_needed(9F),
     ddi_quiesce_not_supported(9F)