I'm wondering if it's possible to adjust (increment/decrement) brightness or volume with a laptop keyboard's dedicated brightness/volume keys in the virtual console.
Can the system be configured to perform a background operation in response to a single keypress, or is the only mode of interaction via the command line? (I have already found ways to make the adjustments via the command line.)
The only comparable example I can think of is the power button signaling an immediate system halt. However, I suspect that operates on a different level, since when I tried pressing it at the
showkey prompt, it still shut down the system (rather than returning a keycode).
EDIT: Actually, while I've figured out how to do these things purely by the command line, I haven't figured out how to do them without root access. Any further insight on the matter would be greatly appreciated.