Update docs and such for 1st Gen and big 4th Gen support

FAQ.md

@@ -1,37 +1,40 @@
-# FAQ for the Scarlett2 Mixer Driver and `alsa-scarlett-gui`
+# FAQ for the ALSA Scarlett Control Panel (`alsa-scarlett-gui`)
 
 ## What is this?
 
-The Scarlett2 Protocol Driver (also known as the Scarlett2 Mixer
-Driver) is a part of the Linux kernel, enhancing the ALSA kernel
-driver with additional controls for Focusrite Scarlett, Clarett, and
-Vocaster interfaces.
+The ALSA Scarlett Control Panel (`alsa-scarlett-gui`) is an
+easy-to-use application for adjusting the ALSA controls provided by
+three Linux kernel drivers for Focusrite USB interfaces:
+
+1. The Scarlett 1st Gen Mixer Driver (for 1st Gen 6i6, 8i6, 18i6, 18i8, 18i20)
+2. The Scarlett2 Protocol Driver (for 2nd/3rd Gen interfaces, small 4th Gen, Clarett, and Vocaster)
+3. The FCP (Focusrite Control Protocol) Driver (for big 4th Gen interfaces: 16i16, 18i16, 18i20)
 
 To check if your kernel is already up-to-date, and how to upgrade if
 not, see the [Control Panel Installation Prerequisites — Linux
 Kernel](docs/INSTALL.md).
 
-`alsa-scarlett-gui` is an easy-to-use application to adjust those
-controls.
+## Do I need these drivers for my Focusrite interface?
 
-## Do I need the driver for my Focusrite interface?
-
-In order to get audio working? No. Focusrite USB interfaces are
+For basic audio functionality? No. Focusrite USB interfaces are
 “plug-and-play” — they are USB Audio Class Compliant, meaning they
 work out-of-the-box with the standard ALSA USB audio driver (to get
 full functionality on Scarlett 3rd/4th Gen/Vocaster interfaces, first
 deactivate MSD mode by holding down the 48V button while powering it
 on).
 
+However, to access the mixer, routing, and hardware-specific features,
+you'll need the appropriate driver for your interface model.
+
 ## MSD Mode?
 
-“MSD Mode” is the “Mass Storage Device Mode” that the Scarlett 3rd and
+"MSD Mode" is the "Mass Storage Device Mode" that the Scarlett 3rd and
 4th Gen interfaces ship in.
 
 If MSD Mode is enabled, you need to disable it and restart your
 interface to get access to its full functionality.
 
-When you plug the interface in, there’ll be a tiny read-only virtual
+When you plug the interface in, there'll be a tiny read-only virtual
 disk that has a link to the Focusrite product registration page; until
 you turn off MSD Mode not all features of the interface will be
 available.
@@ -40,49 +43,62 @@ You can turn off MSD Mode by holding down the 48V button while
 powering on the interface, or by clicking the button in
 `alsa-scarlett-gui` and rebooting it.
 
-## What is the purpose of the driver if it’s not needed for audio?
+If you do the recommended/required (depending on the model) firmware
+update, MSD Mode will automatically be turned off.
 
-This driver is for users who want more control over their interface.
-It allows for detailed manipulation of internal audio routing and
-settings specific to Scarlett, Clarett, and Vocaster devices, beyond
-the basic audio I/O functionality. Also, being able to monitor the
-audio levels seen by the interface is really useful.
+## What is the purpose of these drivers if they're not needed for basic audio?
+
+These drivers are for users who want more control over their
+interface. They allow for detailed manipulation of:
+
+- Internal audio routing
+- Hardware-specific settings
+- Mixer functionality
+- Level monitoring
+- Input/output configuration
+
+These controls go beyond the basic audio I/O functionality provided by
+the generic ALSA USB audio driver.
 
 ## What interfaces are supported?
 
-- All Scarlett 2nd Gen interfaces with software controls (there are no
-  software controls on the 2nd Gen Solo and 2i2, so the mixer driver
-  is irrelevant).
+The ALSA Scarlett Control Panel supports:
 
-- All Scarlett 3rd Gen interfaces.
+- **Scarlett 1st Gen**: 6i6, 8i6, 18i6, 18i8, 18i20
+- **Scarlett 2nd Gen**: 6i6, 18i8, 18i20
+- **Scarlett 3rd Gen**: Solo, 2i2, 4i4, 8i6, 18i8, 18i20
+- **Scarlett 4th Gen**: Solo, 2i2, 4i4, 16i16, 18i16, 18i20
+- **Clarett USB and Clarett+**: 2Pre, 4Pre, 8Pre
+- **Vocaster**: One, Two
 
-- Scarlett 4th Gen Solo, 2i2, and 4i4.
-
-- All Clarett USB and Clarett+ interfaces.
-
-- Vocaster One and Vocaster Two.
+Note: The Scarlett 1st and 2nd Gen small interfaces (Solo, 2i2, 2i4)
+don't have any software controls. All the controls are available from
+the front panel, so they don't require the specialised drivers or this
+GUI.
 
 ## Where are the options to set the sample rate and buffer size?
 
-It’s important to note that the Scarlett2 driver and
-`alsa-scarlett-gui` have nothing to do with audio input/output to and
-from the device. This task is managed by the generic part of the ALSA
-USB soundcard driver.
+The ALSA Scarlett Control Panel doesn't handle audio input/output
+settings like sample rate and buffer size. These settings are managed
+by the application using the soundcard, typically a sound server such
+as PulseAudio, JACK, or PipeWire.
 
-Audio settings like the sample rate and buffer size are chosen by the
-application which is using the soundcard. In most cases, that is a
-sound server such as PulseAudio, JACK, or PipeWire.
+The sample rate shown in the control panel is informative only and
+displays the current rate being used by applications. If it shows
+“N/A” then no application is using the interface.
 
 Note that not all features are available at higher sample rates; refer
 to the user manual of your interface for more information.
 
 ## Help?!
 
-For help with the driver:
-https://github.com/geoffreybennett/scarlett-gen2/issues
+For help with the Scarlett2 and FCP kernel drivers:
+https://github.com/geoffreybennett/linux-fcp/issues
+
+For help with the FCP user-space side:
+https://github.com/geoffreybennett/fcp-support/issues
 
 For help with `alsa-scarlett-gui`:
 https://github.com/geoffreybennett/alsa-scarlett-gui/issues
 
-For general Linux audio help:
-https://linuxmusicians.com
+For general Linux audio help: https://linuxmusicians.com