4 ms·

I suspect the author may have some experience implementing ad-hoc buttons via GPIO polling from userspace, and maybe used getch() in doing so.

• klodolph 5y ago
  The thing about getch() is that there's not really one standard getch(). There's a Windows version of getch() which is compatible with, notably, Borland's version for DOS (I think), and then various people have reimplemented getch() for other systems.
  • pengaru 5y ago
    They might have meant to write getc() or getchar()...
    • klodolph 5y ago
      That would make no sense at all. I think the comparison to getch() is the natural one here.
      • pengaru 5y ago
        I suppose, from the linux perspective going through curses for this use case, in the same sentence mentioning "debouncing" seems awkward, but it does at least provide a polling api. Honestly I have no idea what they're talking about there.