Difference between revisions of "LED"

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==H3/H5==
 
==H3/H5==
 
板载status LED默认都是心跳灯状态,通过下面的命令可以查看相关的设置:
 
板载status LED默认都是心跳灯状态,通过下面的命令可以查看相关的设置:
 +
<syntaxhighlight lang="bash">
 
$ cat /sys/class/leds/status_led/trigger
 
$ cat /sys/class/leds/status_led/trigger
 
none rc-feedback rfkill-any kbd-scrolllock kbd-numlock kbd-capslock kbd-kanalockk
 
none rc-feedback rfkill-any kbd-scrolllock kbd-numlock kbd-capslock kbd-kanalockk
Line 10: Line 11:
 
0 cpu1 cpu2 cpu3 default-on transient flash torch panic netdev rfkill0 stmmac-0::
 
0 cpu1 cpu2 cpu3 default-on transient flash torch panic netdev rfkill0 stmmac-0::
 
00:1Gbps stmmac-0:00:100Mbps stmmac-0:00:10Mbps
 
00:1Gbps stmmac-0:00:100Mbps stmmac-0:00:10Mbps
 +
<syntaxhighlight>
 +
 
[heartbeat]表示该 LED 的默认触发方式为心跳状态,通过改变trigger节点的值就可以改变LED的触发方式。<br>
 
[heartbeat]表示该 LED 的默认触发方式为心跳状态,通过改变trigger节点的值就可以改变LED的触发方式。<br>
 
举例执行下面的命令可以让LED 保持常亮:
 
举例执行下面的命令可以让LED 保持常亮:
 +
<syntaxhighlight lang="bash">
 
echo default-on > /sys/class/leds/status_led/trigger
 
echo default-on > /sys/class/leds/status_led/trigger
 +
<syntaxhighlight>

Revision as of 03:33, 30 October 2019

查看中文

H3/H5

板载status LED默认都是心跳灯状态,通过下面的命令可以查看相关的设置:

$ cat /sys/class/leds/status_led/trigger
none rc-feedback rfkill-any kbd-scrolllock kbd-numlock kbd-capslock kbd-kanalockk
 kbd-shiftlock kbd-altgrlock kbd-ctrllock kbd-altlock kbd-shiftllock kbd-shiftrll
ock kbd-ctrlllock kbd-ctrlrlock usbport usb-gadget usb-host mmc1 mmc2 mmc0 timerr
 oneshot disk-activity ide-disk mtd nand-disk [heartbeat] backlight gpio cpu cpuu
0 cpu1 cpu2 cpu3 default-on transient flash torch panic netdev rfkill0 stmmac-0::
00:1Gbps stmmac-0:00:100Mbps stmmac-0:00:10Mbps
<syntaxhighlight>
 
[heartbeat]表示该 LED 的默认触发方式为心跳状态,通过改变trigger节点的值就可以改变LED的触发方式。<br>
举例执行下面的命令可以让LED 保持常亮:
<syntaxhighlight lang="bash">
echo default-on > /sys/class/leds/status_led/trigger
<syntaxhighlight>