Kernel Functions for Drivers                    ddidevnregs(9F)



NAME
     ddidevnregs - return the number of register sets a  device
     has

SYNOPSIS
     #include 
     #include 
     #include 



     int ddidevnregs(devinfot *dip, int *resultp);


INTERFACE LEVEL
     Solaris DI specific (Solaris DI).

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


     resultp    Pointer to an integer that holds  the  number  of
                register sets on return.


DESCRIPTION
     The ddidevnregs() function returns the number of  sets  of
     registers the device has.

RETURN VALUES
     The ddidevnregs() function returns:

     DISUCES    A successful return. The number  of  register
                    sets is returned in resultp.


     DIFAILURE    The device has no registers.


CONTEXT
     The ddidevnregs() function can be called from user, inter-
     rupt, or kernel context.

SEE ALSO
     ddidevnintrs(9F), ddidevregsize(9F)


     Writing Device Drivers







SunOS 5.11          Last change: 16 Jan 2006                    1