REGISTER_BLKDEV(9)                        Block Devices                        REGISTER_BLKDEV(9)



NAME
       register_blkdev - register a new block device

SYNOPSIS
       int register_blkdev(unsigned int major, const char * name);

ARGUMENTS
       major
           the requested major device number [1..255]. If major=0, try to allocate any unused
           major number.

       name
           the name of the new block device as a zero terminated string

DESCRIPTION
       The name must be unique within the system.

       The return value depends on the major input parameter. - if a major device number was
       requested in range [1..255] then the function returns zero on success, or a negative error
       code - if any unused major number was requested with major=0 parameter then the return
       value is the allocated major number in range [1..255] or a negative error code otherwise

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        REGISTER_BLKDEV(9)