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//20211021
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Freescale i.MX Release Distro 4.1.15-2.0.1 OM-A6-HWTEST /dev/ttymxc0
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OM-A6-HWTEST login:
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Freescale i.MX Release Distro 4.1.15-2.0.1 OM-A6-HWTEST /dev/ttymxc0
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OM-A6-HWTEST login: roo
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Password:
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Login incorrect
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OM-A6-HWTEST login: root
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Password:
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[root@OM-A6-HWTEST:~]# cd /sys/class/leds/
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[root@OM-A6-HWTEST:leds]# ls
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beep@ cpu@ mmc0::@ user@
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[root@OM-A6-HWTEST:leds]# cd beep
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[root@OM-A6-HWTEST:beep]# ls
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brightness max_brightness subsystem@ uevent
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device@ power/ trigger
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[root@OM-A6-HWTEST:beep]# cat trigger
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[none] rc-feedback nand-disk mmc0 timer oneshot heartbeat backlight gpio
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[root@OM-A6-HWTEST:beep]# cd -
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/sys/class/leds
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[root@OM-A6-HWTEST:leds]# ls
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beep@ cpu@ mmc0::@ user@
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[root@OM-A6-HWTEST:leds]# cd cpu
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[root@OM-A6-HWTEST:cpu]# ls
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brightness max_brightness subsystem@ uevent
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device@ power/ trigger
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[root@OM-A6-HWTEST:cpu]# cat trigger
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none rc-feedback nand-disk mmc0 timer oneshot [heartbeat] backlight gpio
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[root@OM-A6-HWTEST:cpu]# cd -
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/sys/class/leds
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[root@OM-A6-HWTEST:leds]# ls
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beep@ cpu@ mmc0::@ user@
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[root@OM-A6-HWTEST:leds]# cd mmc0\:\:
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[root@OM-A6-HWTEST:mmc0::]# ls
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brightness max_brightness subsystem@ uevent
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device@ power/ trigger
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[root@OM-A6-HWTEST:mmc0::]# cat trigger
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none rc-feedback nand-disk [mmc0] timer oneshot heartbeat backlight gpio
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[root@OM-A6-HWTEST:mmc0::]# cd -
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/sys/class/leds
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[root@OM-A6-HWTEST:leds]# ls
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beep@ cpu@ mmc0::@ user@
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[root@OM-A6-HWTEST:leds]# cd user
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[root@OM-A6-HWTEST:user]# ls
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brightness max_brightness subsystem@ uevent
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device@ power/ trigger
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[root@OM-A6-HWTEST:user]# cat trigger
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[none] rc-feedback nand-disk mmc0 timer oneshot heartbeat backlight gpio
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[root@OM-A6-HWTEST:user]# cd -
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/sys/class/leds
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[root@OM-A6-HWTEST:leds]# ls
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beep@ cpu@ mmc0::@ user@
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[root@OM-A6-HWTEST:leds]# cd cpu/
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[root@OM-A6-HWTEST:cpu]# ls
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brightness max_brightness subsystem@ uevent
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device@ power/ trigger
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[root@OM-A6-HWTEST:cpu]# cat trigger
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none rc-feedback nand-disk mmc0 timer oneshot [heartbeat] backlight gpio
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[root@OM-A6-HWTEST:cpu]# echo none > trigger
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[root@OM-A6-HWTEST:cpu]# cat trigger
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[none] rc-feedback nand-disk mmc0 timer oneshot heartbeat backlight gpio
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[root@OM-A6-HWTEST:cpu]# cd -
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/sys/class/leds
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[root@OM-A6-HWTEST:leds]# ls
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beep@ cpu@ mmc0::@ user@
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[root@OM-A6-HWTEST:leds]# echo 1 > cpu
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-sh: cpu: Is a directory
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[root@OM-A6-HWTEST:leds]# cd -
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/sys/class/leds/cpu
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[root@OM-A6-HWTEST:cpu]# ls
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brightness max_brightness subsystem@ uevent
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device@ power/ trigger
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[root@OM-A6-HWTEST:cpu]# echo 1 > brightness
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[root@OM-A6-HWTEST:cpu]# echo 0 > brightness
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[root@OM-A6-HWTEST:cpu]#
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/////////////////////////////////////////////////////////////////////
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//20211022
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[root@OM-A6-HWTEST:~]# cat /sys/class/leds/cpu/trigger
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none rc-feedback nand-disk mmc0 timer oneshot [heartbeat] backlight gpio
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[root@OM-A6-HWTEST:~]# echo none > /sys/class/leds/cpu/trigger
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[root@OM-A6-HWTEST:~]# cat /sys/class/leds/cpu/trigger
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[none] rc-feedback nand-disk mmc0 timer oneshot heartbeat backlight gpio
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[root@OM-A6-HWTEST:~]#
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