Howto edit led trigger file

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Howto edit led trigger file #288

Closed dvwyngaa closed 9 years ago

dvwyngaa commented 10 years ago

Hi,

If I want the green led to blink on disk activity or just for a specific disk, say sda1, how do I add this option to the led trigger file?

I have tried to do this with "echo disk-activity > /sys/class/leds/blue:ph21:led2/trigger" but I get a error: "-su: echo: write error: Invalid argument"

Any help would be appreciated.

Regards,

Dawid

kdeenkhoorn commented 10 years ago

Dawid,

If you do: more /sys/class/leds/orange:ph20:led2/trigger You see the available options for this led:

none rfkill0 battery-charging-or-full battery-charging battery-full battery-charging-blink-full-solid ac-online usb-online mmc0 mmc1 timer heartbeat backlight gpio [cpu0] cpu1 default-on

With, in my case, 'cpu0' selected. Unfortunate 'disk-activity' is not one of the options the driver has to offer.

Also look at http://linux-sunxi.org/Cubieboard/Programming/StatusLEDs for reference.