wireless-phy
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wireless-phy
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	#!/bin/sh
	#
	# Copyright (C) 2018-2020 VyOS maintainers and contributors
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License version 2 or later as
	# published by the Free Software Foundation.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program. If not, see <http://www.gnu.org/licenses/>.

	if [ ! -d /sys/class/ieee80211 ]; then
	echo No IEEE 802.11 physical interfaces detected
	exit 1
	fi

	if [ ! -e /sys/class/ieee80211/$1 ]; then
	echo Device interface "$1" does not exist
	exit 1
	fi