Because OpenWrt uses its own init script system, all init scripts must be installed
as \texttt{/etc/init.d/\textit{name}} use \texttt{/etc/rc.common} as a wrapper.
Example: \texttt{/etc/init.d/httpd}
\begin{Verbatim}
#!/bin/sh /etc/rc.common
# Copyright (C) 2006 OpenWrt.org
START=50
start() {
[ -d /www ] && httpd -p 80 -h /www -r OpenWrt
}
stop() {
killall httpd
}
\end{Verbatim}
as you can see, the script does not actually parse the command line arguments itself.
This is done by the wrapper script \texttt{/etc/rc.common}.
\texttt{start()} and \texttt{stop()} are the basic functions, which almost any init
script should provide. \texttt{start()} is called when the user runs \texttt{/etc/init.d/httpd start}
or (if the script is enabled and does not override this behavior) at system boot time.
Enabling and disabling init scripts is done by running \texttt{/etc/init.d/\textit{name} enable}
or \texttt{/etc/init.d/\textit{name} disable}. This creates or removes symbolic links to the
init script in \texttt{/etc/rc.d}, which is processed by \texttt{/etc/init.d/rcS} at boot time.
The order in which these scripts are run is defined in the variable \texttt{START} in the init
script. Changing it requires running \texttt{/etc/init.d/\textit{name} enable} again.
You can also override these standard init script functions:
\begin{itemize}
\item \texttt{boot()} \\
Commands to be run at boot time. Defaults to \texttt{start()}
\item \texttt{restart()} \\
Restart your service. Defaults to \texttt{stop(); start()}
\item \texttt{reload()} \\
Reload the configuration files for your service. Defaults to \texttt{restart()}
\end{itemize}
You can also add custom commands by creating the appropriate functions and referencing them
in the \texttt{EXTRA\_COMMANDS} variable. Helptext is added in \texttt{EXTRA\_HELP}.
Example:
\begin{Verbatim}
status() {
# print the status info
}
EXTRA_COMMANDS="status"
EXTRA_HELP=" status Print the status of the service"
\end{Verbatim}
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#
# Copyright (C) 2014 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=linux-firmware
PKG_SOURCE_VERSION:=42ad5367dd38371b2a1bb263b6efa85f9b92fc93
PKG_VERSION:=2016-09-21-$(PKG_SOURCE_VERSION)
PKG_RELEASE:=1
PKG_SOURCE_PROTO:=git
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_SOURCE_VERSION)
PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
PKG_SOURCE_URL:=https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
PKG_MIRROR_MD5SUM:=762d7f4a87e944338c2871c953603377
PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
SCAN_DEPS = *.mk
include $(INCLUDE_DIR)/package.mk
define Package/firmware-default
SECTION:=firmware
CATEGORY:=Firmware
URL:=http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git
TITLE:=$(1)
endef
define Build/Compile
endef
include $(wildcard ./*.mk)
#$(eval $(call BuildPackage,linux-firmware))
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