centos man page for get_gendisk

GET_GENDISK(9)							   Block Devices						    GET_GENDISK(9)

NAME
       get_gendisk - get partitioning information for a given device

SYNOPSIS
       struct gendisk * get_gendisk(dev_t devt, int * partno);

ARGUMENTS
       devt
	   device to get partitioning information for

       partno
	   returned partition index

DESCRIPTION
       This function gets the structure containing partitioning information for the given device devt.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							    GET_GENDISK(9)