_bfs_module()
{
	local cur prev OPTS DEVS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	case $prev in
		'-N'|'--inodes')
			COMPREPLY=( $(compgen -W "number" -- $cur) )
			return 0
			;;
		'-V'|'--vname'|'-F'|'--fname')
			COMPREPLY=( $(compgen -W "name" -- $cur) )
			return 0
			;;
		'-h'|'--help'|'--version')
			return 0
			;;
	esac
	case $cur in
		-*)
			OPTS='--inodes --vname --fname --verbose --help --version'
			COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
			return 0
			;;
	esac
	while read dev; do DEVS+="$dev " ; done < <(lsblk -pnro name)
	COMPREPLY=( $(compgen -W "$DEVS /path/to/file" -- $cur) )
	return 0
}
complete -F _bfs_module bfs