33 lines
1.2 KiB
Org Mode
33 lines
1.2 KiB
Org Mode
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#+title: Corne Keyboard
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#+setupfile: ../../headers
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* Corne Keyboard
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I use a Corne (=crkbd=), a small split ergonomic keyboard, flashed with
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[[https://get.vial.today/][Vial]], a QMK-based firmware that lets me remap keys live from a GUI
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instead of having to reflash the keyboard every time I want to tweak
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my layout. Here’s the skeleton of the =nixos.corne= module.
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#+begin_src nix :tangle yes
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{
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flake.modules.nixos.corne = {
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<<udev-rule>>
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};
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}
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#+end_src
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** Granting HID Access
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By default, the =hidraw= device nodes created for the keyboard are only
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accessible to root, which means Vial can’t talk to it without running
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as root too. Instead, I add a =udev= rule matching my keyboard’s Vial
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identifier (the part after =vial:= is the keyboard’s unique unlock ID,
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burned into its firmware) and grant the =users= group read/write access
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to it, tagging it for =uaccess= / =udev-acl= so it’s also picked up by the
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logged-in session’s ACLs.
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#+name: udev-rule
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#+begin_src nix
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services.udev = {
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extraRules = ''
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KERNEL=="hidraw*", SUBSYSTEM=="hidraw", ATTRS{serial}=="*vial:f64c2b3c*", MODE="0660", GROUP="users", TAG+="uaccess", TAG+="udev-acl"
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'';
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};
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#+end_src
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