dev_valid_name(9) centos man page | unix.com

DEV_VALID_NAME(9)					      Network device support						 DEV_VALID_NAME(9)

NAME
       dev_valid_name - check if name is okay for network device

SYNOPSIS
       bool dev_valid_name(const char * name);

ARGUMENTS
       name
	   name string

DESCRIPTION
       Network device names need to be valid file names to to allow sysfs to work. We also disallow any kind of whitespace.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							 DEV_VALID_NAME(9)