Manual Pages for UNIX Operating System command usage for man ddi_driver_major

Kernel Functions for Drivers                 ddi_driver_major(9F)



NAME
     ddi_driver_major - return driver's major device number

SYNOPSIS
     #include 
     #include 

     major_t ddi_driver_major(dev_info_t *dip);


INTERFACE LEVEL
     Solaris DDI specific (Solaris DDI)

DESCRIPTION
     ddi_driver_major() returns the major device number  for  the
     driver  associated  with  the  supplied  dev_info node. This
     value can then be used as an argument to  makedevice(9F)  to
     construct a complete dev_t.

PARAMETERS
     dip    A pointer to the device's dev_info structure.


RETURN VALUES
     ddi_driver_major() returns the major number  of  the  driver
     bound to a device, if any, or DDI_MAJOR_T_NONE otherwise.

CONTEXT
     ddi_driver_major() can be called from  kernel  or  interrupt
     context.

SEE ALSO
     ddi_driver_name(9F)


     Writing Device Drivers



















SunOS 5.11          Last change: 18 Jun 2001                    1