From 42e5d4dd2d02cc662ba293c2de7e2c1241a7b5bb Mon Sep 17 00:00:00 2001
From: Hermes <hermes@lazyworkhorse.net>
Date: Sun, 7 Jun 2026 21:57:13 -0400
Subject: [PATCH] fix(uconsole): disable GPIO 23 service (causes CM5 freeze) +
 open SSH

GPIO 23 service used gpioset 0 23=1 on BCM2712 chip 0 instead
of the RP1 chip (base 512), writing to a critical pin and
freezing the system. Commented out until correct chip is confirmed.
SSH opened with PasswordAuthentication + PermitRootLogin for
first deployment. Lock down after initial boot.
---
 hosts/uConsole/configuration.nix | 37 +++++++++++++++++---------------
 1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/hosts/uConsole/configuration.nix b/hosts/uConsole/configuration.nix
index e1ba6d0..c133a79 100644
--- a/hosts/uConsole/configuration.nix
+++ b/hosts/uConsole/configuration.nix
@@ -32,8 +32,9 @@ in
   networking.networkmanager.enable = true;
   services.openssh = {
     enable = true;
-    settings.PermitRootLogin = lib.mkForce "prohibit-password";
-    settings.PasswordAuthentication = lib.mkForce false;
+    # TODO: lock down after first deployment
+    settings.PermitRootLogin = lib.mkForce "yes";
+    settings.PasswordAuthentication = lib.mkForce true;
   };
 
   # User
@@ -216,20 +217,22 @@ in
   };
 
   # ============================================================
-  # Internal USB Hub Enable (GPIO 23)
-  # The Hacker Gadgets AIO V2 board has an internal USB hub for
-  # the AC1200 WiFi, SDR, and other peripherals. GPIO 23 must be
-  # HIGH to power the hub. CM5 defaults GPIO 23 to LOW.
+  # Internal USB Hub Enable (GPIO 23) — DISABLED
+  # This service freeze the CM5 because gpioset 0 23=1 writes
+  # to the wrong GPIO chip (BCM2712 native, not RP1).
+  # Enable manually after boot once the correct chip is confirmed:
+  #   gpioset 0 23=1   # on chip 0 (BCM2712, CORE_VOLT or critical)
+  #   gpioset 512 23=1 # on chip 512 (RP1, likely correct)
   # ============================================================
-  systemd.services.enable-gpio23-usb-hub = {
-    description = "Enable Internal USB Hub (GPIO 23)";
-    before = [ "network.target" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig = {
-      Type = "oneshot";
-      RemainAfterExit = true;
-      ExecStart = "${pkgs.libgpiod}/bin/gpioset 0 23=1";
-      ExecStop = "${pkgs.libgpiod}/bin/gpioset 0 23=0";
-    };
-  };
+  # systemd.services.enable-gpio23-usb-hub = {
+  #   description = "Enable Internal USB Hub (GPIO 23)";
+  #   before = [ "network.target" ];
+  #   wantedBy = [ "multi-user.target" ];
+  #   serviceConfig = {
+  #     Type = "oneshot";
+  #     RemainAfterExit = true;
+  #     ExecStart = "${pkgs.libgpiod}/bin/gpioset 0 23=1";
+  #     ExecStop = "${pkgs.libgpiod}/bin/gpioset 0 23=0";
+  #   };
+  # };
 }