treewide: modules -> profiles, separate dirs, list in README (NixOS#29)

Enforce proper naming: all paths are lowercase and hyphen-separated,
if there's a line of models (aspire, macbook-pro, thinkpad) it becomes
a subdirectory. Documentation for profiles is moved to README files in
respective directories.

Add an Org mode table that lists all available profiles and their paths.

Instead of fetching repo locally, use a Nix channel. Making hardware
profiles read-only should improve quality and amount of participation
long-term.

README.org

@@ -0,0 +1,47 @@
+NixOS profiles covering hardware quirks.
+
+Add a new channel:
+
+  : $ sudo nix-channel --add https://github.com/NixOS/nixos-hardware/archive/master.tar.gz nixos-hardware
+  : $ sudo nix-channel --update nixos-hardware
+
+Then add an appropriate profile path to ~imports~ in
+~/etc/nixos/configuration.nix~. Currently available profiles:
+
+| Model                     | Path                                       |
+|---------------------------+--------------------------------------------|
+| Acer Aspire 4810T         | ~<nixos-hardware/acer/aspire/4810t>~       |
+| Acer C720                 | ~<nixos-hardware/acer/c720>~               |
+| Airis N990                | ~<nixos-hardware/airis/n990>~              |
+| Apple MacBook Pro 10,1    | ~<nixos-hardware/apple/macbook-pro/10-1>~  |
+| Apple MacBook Pro 12,1    | ~<nixos-hardware/apple/macbook-pro/12-1>~  |
+| Dell XPS 15 9550          | ~<nixos-hardware/dell/xps/15-9550>~        |
+| Inverse Path USB armory   | ~<nixos-hardware/inversepath/usbarmory>~   |
+| Lenovo IdeaPad Z510       | ~<nixos-hardware/lenovo/ideapad/z510>~     |
+| Lenovo ThinkPad T410      | ~<nixos-hardware/lenovo/thinkpad/t410>~    |
+| Lenovo ThinkPad T440p     | ~<nixos-hardware/lenovo/thinkpad/t440p>~   |
+| Lenovo ThinkPad T460s     | ~<nixos-hardware/lenovo/thinkpad/t460s>~   |
+| Lenovo ThinkPad X140e     | ~<nixos-hardware/lenovo/thinkpad/x140e>~   |
+| Lenovo ThinkPad X220      | ~<nixos-hardware/lenovo/thinkpad/x220>~    |
+| Microsoft Surface Pro 3   | ~<nixos-hardware/microsoft/surface-pro/3>~ |
+| Raspberry Pi 2            | ~<nixos-hardware/raspberry-pi/2>~          |
+| Samsung Series 9 NP900X3C | ~<nixos-hardware/samsung/np900x3c>~        |
+| Supermicro A1SRi-2758F    | ~<nixos-hardware/supermicro/a1sri-2758f>~  |
+| Supermicro X10SLL-F       | ~<nixos-hardware/supermicro/x10sll-f>~     |
+
+For example, to enable ThinkPad X220 profile, your ~imports~ should look like:
+
+  : imports = [ <nixos-hardware/lenovo/thinkpad/x220> ./hardware-configuration.nix ];
+
+Profiles should favor usability and stability, so performance hacks should be
+activated by an additional NixOS option or conservative and performance configs
+can be declared in seperate profiles.
+
+Because profiles can only be tested with the appropriate hardware, quality
+assurance is up to *you*.
+
+** Simple tips and tricks
+
+*** Disable PC speaker
+
+  : boot.blacklistedKernelModules = [ "pcspkr" ];

asus/wireless-ac1300.nix

@@ -1,5 +1,7 @@
 # Use this module if you use a realtek 18812au based wifi dongle, like ASUS Wireless-AC1300
+
 { pkgs, ... }:
+
 {
   boot.extraModulePackages = [ pkgs.linuxPackages.rtl8812au ];
   boot.kernelModules = [ "8812au" ];

lenovo/thinkpad/t410.nix → lenovo/thinkpad/t410/default.nix

@@ -1,7 +1,7 @@
 { config, pkgs, ... }:
 
 {
-  imports = [ ./general-intel.nix ];
+  imports = [ ../intel.nix ];
 
   boot = {
     kernelParams = [

lenovo/thinkpad/t440p.nix → lenovo/thinkpad/t440p/default.nix

@@ -1,7 +1,7 @@
 { config, pkgs, ... }:
 
 {
-  imports = [ ./general-intel.nix ];
+  imports = [ ../intel.nix ];
 
   boot = {
     extraModprobeConfig = ''

lenovo/thinkpad/x140e.nix → lenovo/thinkpad/x140e/default.nix

@@ -1,7 +1,7 @@
 { config, lib, pkgs, ... }:
 
 {
-  imports = [ ./general.nix ];
+  imports = [ ../common.nix ];
 
   boot = {
     # wireless

lenovo/thinkpad/x220i-tablet.nix → lenovo/thinkpad/x220/default.nix

@@ -1,7 +1,7 @@
 { config, pkgs, ... }:
 
 {
-  imports = [ ./general-intel.nix ];
+  imports = [ ../intel.nix ];
 
   # TPM chip countains a RNG
   security.rngd.enable = true;