mojave man page for getminor

getminor(9F)                                               Kernel Functions for Drivers                                               getminor(9F)

NAME
       getminor - get minor device number

SYNOPSIS
       #include <sys/types.h>
       #include <sys/mkdev.h>
       #include <sys/ddi.h>

       minor_t getminor(dev_t dev);

INTERFACE LEVEL
       Architecture independent level 1 (DDI/DKI).

PARAMETERS
       dev      Device number.

DESCRIPTION
       getminor() extracts the minor number from a device number.

RETURN VALUES
       The minor number.

CONTEXT
       getminor() can be called from user or interrupt context.

EXAMPLES
       See the  getmajor(9F) manual page for an example of how to use getminor().

SEE ALSO
       getmajor(9F), makedevice(9F)

       Writing Device Drivers

WARNINGS
       No validity checking is performed.  If  dev is invalid, an invalid number is returned.

SunOS 5.10                                                          11 Apr 1991                                                       getminor(9F)