LED settings

Hi

I’ve been looking at the settings of dietpi-led_control.

I haven’t found a description of the various options mean:
none │
│ rc-feedback │
│ kbd-scrolllock │
│ kbd-numlock │
│ kbd-capslock │
│ kbd-kanalock │
│ kbd-shiftlock │
│ kbd-altgrlock │
│ kbd-ctrllock │
│ kbd-altlock │
│ kbd-shiftllock │
│ kbd-shiftrlock │
│ kbd-ctrlllock │
│ kbd-ctrlrlock │
│ timer │
│ oneshot │
│ heartbeat │
│ backlight │
│ gpio │
│ cpu │
│ cpu0 │
│ cpu1 │
│ cpu2 │
│ cpu3 │
│ default-on │
│ input │
│ panic │
│ actpwr │
│ mmc0

Some are logical others less.

I’d like to set the green LED to show access to my USB drive (it’s blinking all the time with access to the non-existent SD card. That’s mmc I guess).
Is this possible?

thx!

Looks like mmc is memory i/o (not very useful). I’ve set it to cpu0 for now (more useful).
Still wanting USB access…