Added lsusb to Pi's

Deployments/pi3B_rack.nix

@@ -1,8 +0,0 @@
-# Configuration common to all Raspberry Pi 3 Model B devices in the MIO rack
-
-{ config, pkgs, lib, ... }:
-
-{
-  networking.wireless.enable = false;  # Toggles wireless support via wpa_supplicant.
-
-}

Networks/raspberry_pi_rack.nix

@@ -21,6 +21,8 @@
       allowUnfree = true;
     };
 
+    networking.wireless.enable = false;  # Toggles wireless support via wpa_supplicant.
+
     documentation = {
       nixos.enable = false;   # Save some space by disabling the manual
     };
@@ -31,6 +33,10 @@
       ];
     };
 
+    environment.systemPackages = with pkgs; [
+      lsusb   # Tools for working with USB devices, such as lsusb
+    ];
+
   };
 
   pi-tri =