feat: modularize usb kernel drivers

Config.in

@@ -0,0 +1,4 @@
+# Add project-specific packages for Buildroot here
+#
+# If these are non-proprietary, please consider contributing them back to
+# Nerves or Buildroot.

linux-5.15.defconfig

@@ -110,12 +110,14 @@ CONFIG_TUN=m
 # CONFIG_NET_VENDOR_SYNOPSYS is not set
 # CONFIG_NET_VENDOR_VIA is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_USB_USBNET=y
+CONFIG_PHYLIB=y
+CONFIG_SMSC_PHY=y
+CONFIG_USB_USBNET=m
 # CONFIG_USB_NET_AX8817X is not set
 # CONFIG_USB_NET_AX88179_178A is not set
 # CONFIG_USB_NET_CDCETHER is not set
 # CONFIG_USB_NET_CDC_NCM is not set
-CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_NET_SMSC95XX=m
 # CONFIG_USB_NET_NET1080 is not set
 # CONFIG_USB_NET_CDC_SUBSET is not set
 # CONFIG_USB_NET_ZAURUS is not set
@@ -362,15 +364,14 @@ CONFIG_HIDRAW=y
 CONFIG_HID_APPLE=y
 CONFIG_HID_PID=y
 CONFIG_USB_HIDDEV=y
-CONFIG_USB=y
+CONFIG_USB=m
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_DWCOTG=y
-CONFIG_USB_ACM=y
-CONFIG_USB_STORAGE=y
-CONFIG_USB_SERIAL=y
-CONFIG_USB_SERIAL_CH341=y
-CONFIG_USB_SERIAL_CP210X=y
-CONFIG_USB_SERIAL_FTDI_SIO=y
+CONFIG_USB_STORAGE=m
+CONFIG_USB_SERIAL=m
+CONFIG_USB_SERIAL_CH341=m
+CONFIG_USB_SERIAL_CP210X=m
+CONFIG_USB_SERIAL_FTDI_SIO=m
 CONFIG_USB_SERIAL_PL2303=m
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_MMC=y

mix.exs

@@ -1,8 +1,8 @@
-defmodule NervesSystemRpi.MixProject do
+defmodule PfistUSBHubCustomRPi.MixProject do
   use Mix.Project
 
-  @github_organization "nerves-project"
-  @app :nerves_system_rpi
+  @github_organization "PfisterFactor"
+  @app :pfist_usbhub_custom_rpi
   @source_url "https://github.com/#{@github_organization}/#{@app}"
   @version Path.join(__DIR__, "VERSION")
            |> File.read!()