[package] adds a --help option to /sbin/wifi

Signed-off-by: Sebastian Philipp <sebastian@spawnhost.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24258 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=61
+PKG_RELEASE:=62
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 PKG_BUILD_DEPENDS:=opkg/host

package/base-files/files/sbin/wifi

@@ -3,6 +3,14 @@
 
 . /etc/functions.sh
 
+usage() {
+	cat <<EOF
+Usage: $0 [down|detect]
+enables (default), disables or detects a wifi configuration.
+EOF
+	exit 1
+}
+
 find_net_config() {(
 	local vif="$1"
 	local cfg
@@ -183,5 +191,6 @@ scan_wifi
 case "$1" in
 	down) wifi_updown "disable" "$2";;
 	detect) wifi_detect "$2";;
+	--help|help) usage;;
 	*) wifi_updown "enable" "$2";;
 esac