Thank you for keeping me informed. My colleague and I like the idea of the ‘line’ class. I work with digital inputs(s) and output(s) every day. From my embedded controller perspective most of my outputs are to relays, coils, solenoids, control signals to other digital devices… with a few connected to indicators (LEDs, bulbs). Most inputs are toggle-switches, push-buttons, control signals from other digital devices… none are from keypads. I now understand better that using the gpio-led class is used as ‘output’ and gpio-keypad is used as ‘input’. However ‘gpio-line’ is a much better description.
I see that Rodolfo has gotten feedback from Linus Walleij. I am keeping an eye on their conversation.