• @Fridgeratr
      link
      10311 months ago

      Modern USB keyboards need to be asked what’s being pressed by the CPU multiple times a second, but old PS/2 keyboards will actually interrupt the CPU to send the key press command

      • @[email protected]
        link
        fedilink
        English
        13
        edit-2
        11 months ago

        Oh, didn’t actually know what’s being done behind the scene…

        Why is this relevant to Linux only?

    • @marcos
      link
      12
      edit-2
      11 months ago

      I see you had interruptions masked.

      • Turun
        link
        fedilink
        2
        edit-2
        11 months ago

        Why e in this context? I have seen sei() and cli() before, but not E.

        • @marcos
          link
          2911 months ago

          That’s the very important information you got from the keyboard.

          Some context may come later, but it will take ages.

          • Turun
            link
            fedilink
            2
            edit-2
            11 months ago

            Thanks, apparently I can’t read. I somehow missed the top right yellow speech bubble.