phil-opp/blog_os

No keyboard input

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#1,173 opened on Nov 14, 2022

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help wanted

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Description

I cloned "part12" and built using the standard versions of everything. It works fine except key presses aren't registered. I did a little debugging and the keyboard interrupt is never triggered as far as I can tell. The timer interrupt is triggered normally. I'm using QEMU 7.1.90 on a win10 machine. My host keyboard is a pretty ordinary Norwegian layout USB keyboard. I tried adding "-k no" to the qemu command line, but that made no difference. Any suggestions?

Contributor guide

Research direction
Check the keyboard interrupt handler (IRQ1) in the IDT. Ensure the PIC is configured to unmask the keyboard interrupt. Also verify QEMU's PS/2 keyboard emulation.
Tech stack
rust
Domain
operating systems
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
RustQEMUOS development basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30