openwrt wiki 为按键添加功能--简单方便

 openwrt wiki 为按键添加功能--简单方便

 

本文转自：http://blog.chinaunix.net/uid-9688646-id-5083512.html

准备

The first step is to make Hotplug execute scripts in /etc/hotplug.d/button when a button is clicked. Modify /etc/hotplug2.rules — remove '^' before 'button' as follow:

<span class="re1">$include</span> <span class="sy0">/</span>etc<span class="sy0">/</span>hotplug2-common.rules SUBSYSTEM ~~ <span class="br0">(</span>^net$|^input$|button$|^usb$|^ieee1394$|^block$|^atm$|^zaptel$|^tty$<span class="br0">)</span> <span class="br0">{</span> <span class="kw3">exec</span> <span class="sy0">/</span>sbin<span class="sy0">/</span>hotplug-call <span class="sy0">%</span>SUBSYSTEM<span class="sy0">%</span> <span class="br0">}</span> DEVICENAME == watchdog <span class="br0">{</span> <span class="kw3">exec</span> <span class="sy0">/</span>sbin<span class="sy0">/</span>watchdog <span class="re5">-t</span> <span class="nu0">5</span> <span class="sy0">/</span>dev<span class="sy0">/</span>watchdognext-event <span class="br0">}</span>

The second step is to find out the internal name of the button you want to use: some images use generic names such as BTN_1, BTN_2, others have more specific ones like reset, wps, etc. Run the following:

<span class="co0"># mkdir -p /etc/hotplug.d/button</span>

Create the file /etc/hotplug.d/button/buttons with your favorite text editor, paste the following:

<span class="co0">#!/bin/sh</span> logger <span class="re1">$BUTTON</span> logger <span class="re1">$ACTION</span>

Save and exit. Now press the button you want to use, then run logread.

Jan <span class="nu0">1</span> 00:01:<span class="nu0">15</span> OpenWrt user.notice root: BTN_1   Jan <span class="nu0">1</span> 00:01:<span class="nu0">15</span> OpenWrt user.notice root: pressed   Jan <span class="nu0">1</span> 00:01:<span class="nu0">16</span> OpenWrt user.notice root: BTN_1    Jan <span class="nu0">1</span> 00:01:<span class="nu0">16</span> OpenWrt user.notice root: released

BTN_1 is the name of the button you want to use. If you want or need to use another button, replace every instance of BTN_1 in the rest of this document with the correct text. From now on, there are several possible approaches: the first uses the 00-button script from the atheros target, the other a simpler shell script.

notice

If you want to run programs from hotplug's scripts you need to be sure PATH and the like are initialized properly, scripts invoked by hotplug only have a default env. Especially if you install stuff into nonstandard locations like /opt/usr/bin. It's possible by adding . /etc/profile after #!/bin/sh

<span class="co0">#!/bin/sh</span> . <span class="sy0">/</span>etc<span class="sy0">/</span>profile

Using Atheros' 00-button + UCI

If you've installed the full version of wget, run the following:

<span class="co0"># wget -O /etc/hotplug.d/button/00-button <a target=_blank style="color: rgb(255, 153, 0); text-decoration: none;" href="https://dev.openwrt.org/export/36332/trunk/target/linux/atheros/base-files/etc/hotplug.d/button/00-button" target="_blank">https://dev.openwrt.org/export/36332/trunk/target/linux/atheros/base-files/etc/hotplug.d/button/00-button</a></span>

If you only have wget-nossl and don't want to or can't upgrade, create /etc/hotplug.d/button/00-button with your favorite editor, then paste the following:  （下面的内容就是上面wget下载的00-button文件）

<span class="co0">#!/bin/sh</span> . <span class="sy0">/</span>lib<span class="sy0">/</span>functions.shdo_button <span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span> <span class="kw3">local</span> button <span class="kw3">local</span> action <span class="kw3">local</span> handler <span class="kw3">local</span> min <span class="kw3">local</span> max         config_get button $<span class="nu0">1</span> button        config_get action $<span class="nu0">1</span> action        config_get handler $<span class="nu0">1</span> handler        config_get min $<span class="nu0">1</span> min        config_get max $<span class="nu0">1</span> max <span class="br0">[</span> <span class="st0">"$ACTION"</span> = <span class="st0">"$action"</span> <span class="re5">-a</span> <span class="st0">"$BUTTON"</span> = <span class="st0">"$button"</span> <span class="re5">-a</span> <span class="re5">-n</span> <span class="st0">"$handler"</span> <span class="br0">]</span> <span class="sy0">&&</span> <span class="br0">{</span> <span class="br0">[</span> <span class="re5">-z</span> <span class="st0">"$min"</span> <span class="re5">-o</span> <span class="re5">-z</span> <span class="st0">"$max"</span> <span class="br0">]</span> <span class="sy0">&&</span> <span class="kw3">eval</span> <span class="re1">$handler</span> <span class="br0">[</span> <span class="re5">-n</span> <span class="st0">"$min"</span> <span class="re5">-a</span> <span class="re5">-n</span> <span class="st0">"$max"</span> <span class="br0">]</span> <span class="sy0">&&</span> <span class="br0">{</span> <span class="br0">[</span> <span class="re1">$min</span> <span class="re5">-le</span> <span class="re1">$SEEN</span> <span class="re5">-a</span> <span class="re1">$max</span> <span class="re5">-ge</span> <span class="re1">$SEEN</span> <span class="br0">]</span> <span class="sy0">&&</span> <span class="kw3">eval</span> <span class="re1">$handler</span> <span class="br0">}</span> <span class="br0">}</span> <span class="br0">}</span> config_load systemconfig_foreach do_button button

Please note that after r34793 /etc/functions.sh → /lib/functions.sh so if you are using an old version change it!

Save and exit, then issue these commands:

uci add system button    uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=presseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'logger BTN_1 pressed'</span> uci commit system

button is the name as the button, action 是事件 (两个值: pressed(按下) 和released(释放)), handler 包含当按键时间发生时执行的命令，也可以用一个脚本代替

You may need to reboot the router the make the change effective (mine would work with the simple shell script just fine but wouldn't budge when using the 00-button script —Frex 2011/03/25 22:29). If this works, you can change the handler to something more useful, and add more button handlers.

Examples

Example 1: Toggle Wi-Fi radio with a button press    用按键触发wifi

uci add system button    uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=wps    uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=presseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'uci set wireless.@<span class="search_hit">wifi</span>-device[0].disabled=1 && <span class="search_hit">wifi</span>'</span> uci commit system

Example 2: Assign two different functions to the same button: short press VS long press. This relies on tracking thereleased event rather than the pressed event.         用一个按键定义两个功能：短按和长按，长按也可以规定时间长度，根据时间长度来设置不同的功能。

uci add system buttonuci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=releaseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'logger timed pressed: 0-3s'</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.min=0uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.max=<span class="nu0">3</span> uci add system buttonuci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=releaseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'logger timed pressed: 8-10s'</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.min=<span class="nu0">8</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.max=<span class="nu0">10</span> uci commit system

Example 3: Unmount USB storage using a long-ish press   长按卸载usb

uci add system buttonuci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=releaseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">"for i in <span class="es0">\$</span>(mount | awk '/dev<span class="es0">\/</span>sd[b-z]/ { print <span class="es0">\$</span>1}'); do umount <span class="es0">\$</span>i; done"     #卸载的命令，可写成脚本</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.min=<span class="nu0">5</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.max=<span class="nu0">10</span> uci commit system

Example 4: Restore defaults   恢复出厂设置

config button        option button   reset        option action   released        option handler <span class="st0">"firstboot && reboot"</span> option min <span class="nu0">5</span> option max <span class="nu0">30</span>

Example 5: Toggle Wi-Fi using a script    使用脚本命令触发wifi

config button        option button   wps        option action   released        option handler <span class="st0">"/usr/bin/<span class="search_hit">wifi</span>onoff"</span> option min      0        option max <span class="nu0">3</span>

You'll have to create the file /usr/bin/wifionoff and paste this:

<span class="co0">#!/bin/sh</span> <span class="re2">SW</span>=$<span class="br0">(</span>uci <span class="re5">-q</span> get wireless.<span class="sy0">@</span><span class="search_hit">wifi</span>-device<span class="br0">[</span>0<span class="br0">]</span>.disabled<span class="br0">)</span> <span class="br0">[</span> <span class="st0">"$SW"</span> == <span class="st0">"1"</span> <span class="br0">]</span> <span class="sy0">&&</span> uci <span class="kw1">set</span> wireless.<span class="sy0">@</span><span class="search_hit">wifi</span>-device<span class="br0">[</span>0<span class="br0">]</span>.disabled=0   #当前是关闭就开启 <span class="br0">[</span> <span class="st0">"$SW"</span> == <span class="st0">"1"</span> <span class="br0">]</span> || uci <span class="kw1">set</span> wireless.<span class="sy0">@</span><span class="search_hit">wifi</span>-device<span class="br0">[</span>0<span class="br0">]</span>.disabled=<span class="nu0">1   #当前是开启就关闭</span> <span class="search_hit">wifi</span>

Another option for wifionoff is this script (doesn't store the state in uci, so it remains what is set in the configuration) You can also call this script eg. from cron, to switch off yourwifi at night.

<span class="co0">#!/bin/sh</span> <span class="re2">STATEFILE</span>=<span class="st0">"/tmp/<span class="search_hit">wifi</span>onoff.state"</span> <span class="kw1">if</span> <span class="br0">[</span> <span class="re4">$#</span> <span class="re5">-eq</span> <span class="nu0">1</span> <span class="br0">]</span>; <span class="kw1">then   #参数总个数</span> <span class="kw1">case</span> $<span class="nu0">1</span> <span class="kw1">in</span> <span class="st0">"up"</span>|<span class="st0">"on"</span><span class="br0">)</span> <span class="re2">STATE</span>=off      ;; <span class="st0">"down"</span>|<span class="st0">"off"</span><span class="br0">)</span> <span class="re2">STATE</span>=on      ;; <span class="kw1">esac</span> <span class="kw1">else</span> <span class="kw1">if</span> <span class="br0">[</span> <span class="sy0">!</span> <span class="re5">-e</span> <span class="co1">${STATEFILE}</span> <span class="br0">]</span>; <span class="kw1">then</span> <span class="re2">STATE</span>=on <span class="kw1">else</span> . <span class="co1">${STATEFILE}</span> <span class="kw1">fi</span> <span class="kw1">fi</span> <span class="kw1">if</span> <span class="br0">[</span> <span class="re5">-z</span> <span class="co1">${STATE}</span> <span class="br0">]</span>; <span class="kw1">then</span> <span class="re2">STATE</span>=on <span class="kw1">fi</span> <span class="kw1">if</span> <span class="br0">[</span> <span class="co1">${STATE}</span> == <span class="st0">"on"</span> <span class="br0">]</span>; <span class="kw1">then</span> <span class="sy0">/</span>sbin<span class="sy0">/</span><span class="search_hit">wifi</span> down <span class="re2">STATE</span>=off <span class="kw1">else</span> <span class="sy0">/</span>sbin<span class="sy0">/</span><span class="search_hit">wifi</span> up <span class="re2">STATE</span>=on <span class="kw1">fi</span> <span class="kw3">echo</span> <span class="st0">"STATE=${STATE}"</span> <span class="sy0">></span> <span class="co1">${STATEFILE}</span>

Example 6: Set transmission-daemon alt-speed, enable or disable.Short press will activate alt-speed or longer press will deactivate alt-speed and also turns on qss led about speed status on tl-wr1043nd     

设置transmission-daemon alt-speed功能，短按会激活alt-speed,长按会禁用alt-speed，同时会点亮qss灯显示速度状态（tl-wr1043nd）

Edit your alt-speed limits from transmission-daemon ,settings.json file.To execute script, you need to install transmission-remote package from opkg.

uci add system button    uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=presseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'transmission-remote -as'</span> uci add system button    uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=presseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'echo 1 > /sys/class/leds/tl-wr1043nd:green:qss/brightness'  #关灯</span> uci add system buttonuci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=releaseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'transmission-remote -AS'</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.min=<span class="nu0">1</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.max=<span class="nu0">4</span> uci add system buttonuci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.action=releaseduci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.handler=<span class="st0">'echo 0 > /sys/class/leds/tl-wr1043nd:green:qss/brightness'  #开灯</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.min=<span class="nu0">1</span> uci <span class="kw1">set</span> system.<span class="sy0">@</span>button<span class="br0">[</span>-<span class="nu0">1</span><span class="br0">]</span>.max=<span class="nu0">4</span> uci commit system

Leftovers from a previous version  上个版本的遗留问题

<span class="kw2">mkdir</span> <span class="re5">-p</span> <span class="sy0">/</span>etc<span class="sy0">/</span>hotplug.d<span class="sy0">/</span>button <span class="kw2">touch</span> <span class="sy0">/</span>etc<span class="sy0">/</span>hotplug.d<span class="sy0">/</span>button<span class="sy0">/</span>00-button

<span class="kw1">if</span> <span class="br0">[</span> <span class="st0">"$ACTION"</span> = <span class="st0">"pressed"</span> <span class="br0">]</span>; <span class="kw1">then</span> <span class="kw1">if</span> <span class="br0">[</span> <span class="st0">"$BUTTON"</span> = <span class="st0">"BTN_0"</span> <span class="br0">]</span>; <span class="kw1">then</span> BTN_0 <span class="kw1">elif</span> <span class="br0">[</span> <span class="st0">"$BUTTON"</span> = <span class="st0">"BTN_1"</span> <span class="br0">]</span>; <span class="kw1">then</span> BTN_1 <span class="kw1">fi</span> <span class="kw1">fi</span>

<span class="kw2">mkdir</span> <span class="re5">-p</span> <span class="sy0">/</span>etc<span class="sy0">/</span>hotplug.d<span class="sy0">/</span>button <span class="kw2">wget</span> <span class="re5">-O</span> <span class="sy0">/</span>etc<span class="sy0">/</span>hotplug.d<span class="sy0">/</span>button<span class="sy0">/</span>00-button http:<span class="sy0">//</span>dev.openwrt.org<span class="sy0">/</span><span class="kw3">export</span><span class="sy0">/</span><span class="nu0">21216</span><span class="sy0">/</span>trunk<span class="sy0">/</span>target<span class="sy0">/</span>linux<span class="sy0">/</span>atheros<span class="sy0">/</span>base-files<span class="sy0">/</span>etc<span class="sy0">/</span>hotplug.d<span class="sy0">/</span>button<span class="sy0">/</span>00-button <span class="kw2">wget</span> <span class="re5">-O</span> http:<span class="sy0">//</span>dev.openwrt.org<span class="sy0">/</span><span class="kw3">export</span><span class="sy0">/</span><span class="nu0">21216</span><span class="sy0">/</span>trunk<span class="sy0">/</span>target<span class="sy0">/</span>linux<span class="sy0">/</span>atheros<span class="sy0">/</span>base-files<span class="sy0">/</span>etc<span class="sy0">/</span>hotplug.d<span class="sy0">/</span>button<span class="sy0">/</span>00-button

<span class="co0">#!/bin/sh</span> <span class="br0">[</span> <span class="st0">"$BUTTON"</span> = <span class="st0">"BTN_1"</span> <span class="br0">]</span> <span class="sy0">&&</span> <span class="br0">[</span> <span class="st0">"$ACTION"</span> = <span class="st0">"pressed"</span> <span class="br0">]</span> <span class="sy0">&&</span> <span class="br0">{</span> <span class="re2">SW</span>=$<span class="br0">(</span>uci get wireless.<span class="sy0">@</span><span class="search_hit">wifi</span>-device<span class="br0">[</span>0<span class="br0">]</span>.disabled<span class="br0">)</span> <span class="br0">[</span> <span class="re1">$SW</span> == <span class="st0">'0'</span> <span class="br0">]</span> <span class="sy0">&&</span> uci <span class="kw1">set</span> wireless.<span class="sy0">@</span><span class="search_hit">wifi</span>-device<span class="br0">[</span>0<span class="br0">]</span>.disabled=<span class="nu0">1</span> <span class="br0">[</span> <span class="re1">$SW</span> == <span class="st0">'0'</span> <span class="br0">]</span> || uci <span class="kw1">set</span> wireless.<span class="sy0">@</span><span class="search_hit">wifi</span>-device<span class="br0">[</span>0<span class="br0">]</span>.disabled=0 <span class="search_hit">wifi</span> <span class="br0">}</span>

WR1043ND

If you decide to use the wifitoggle package, you will need to change a few things on the default configuration. The following will work and make the QSS led blink "slowly" whenwifi is on:

如果你决定使用wifitoggle软件，你需要修改一些默认配置，下面命令会在wifi开启的时候让qss灯慢速闪烁

uci show <span class="search_hit">wifi</span>toggleuci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>=<span class="search_hit">wifi</span>toggleuci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.led_enable_trigger=timeruci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.persistent=<span class="nu0">1</span> uci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.button=BTN_1uci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.led_sysfs=tl-wr1043nd:green:qssuci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.led_enable_delayon=<span class="nu0">2000</span> uci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.led_disable_default=<span class="nu0">1</span> uci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.led_enable_delayoff=<span class="nu0">3000</span> uci <span class="kw1">set</span> <span class="search_hit">wifi</span>toggle.<span class="sy0">@</span><span class="search_hit">wifi</span>toggle<span class="br0">[</span>0<span class="br0">]</span>.timer=0

You can probably get similar behaviour with phy0tpt trigger.

triggerhappy

To manage the router buttons and also other HID buttons (i.e pad buttons of an usb device) we can use an application like triggerhappy.

First list your available buttons:   列出你的可用的按键

thd <span class="re5">--dump</span> <span class="sy0">/</span>dev<span class="sy0">/</span>input<span class="sy0">/</span>event<span class="sy0">*</span>

press your buttons   按下按键
EV_KEY KEY_WPS_BUTTON 1 /dev/input/event0

# KEY_WPS_BUTTON 1 command

EV_KEY KEY_WPS_BUTTON 0 /dev/input/event0

# KEY_WPS_BUTTON 0 command

EV_KEY KEY_VOLUMEDOWN 1 /dev/input/event1

# KEY_VOLUMEDOWN 1 command

EV_KEY KEY_VOLUMEDOWN 0 /dev/input/event1

# KEY_VOLUMEDOWN 0 command

Now associate your buttons to commands or scripts
path /etc/triggerhappy/triggers.d/example.conf

KEY_WPS_BUTTON <span class="nu0">1</span> <span class="sy0">/</span>etc<span class="sy0">/</span>my<span class="search_hit">wifi</span>script.shKEY_VOLUMEUP <span class="nu0">1</span> amixer <span class="re5">-q</span> <span class="kw1">set</span> Speaker <span class="nu0">3</span><span class="sy0">%</span>+KEY_VOLUMEDOWN <span class="nu0">1</span> amixer <span class="re5">-q</span> <span class="kw1">set</span> Speaker <span class="nu0">3</span><span class="sy0">%</span>-

and run triggerhappy

<span class="sy0">/</span>etc<span class="sy0">/</span>init.d<span class="sy0">/</span>triggerhappy start

cmdpad is another simpler application to manage buttons.