[WIP] Add libgpiod2 and tools for debugging

buildroot-external/Config.in

@@ -94,6 +94,7 @@ menu "KDE Framework and Plasma"
 endmenu
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/ksm-preload/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/libcanberra/Config.in"
+	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/libgpiod2/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/libre/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/librem/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/lottie-qml/Config.in"

buildroot-external/configs/rpi4_64_defconfig

@@ -141,7 +141,6 @@ BR2_PACKAGE_PYTHON3_PY_PYC=y
 BR2_PACKAGE_PYTHON_GOBJECT=y
 BR2_PACKAGE_PYTHON_PIP=y
 BR2_PACKAGE_PYTHON_PODMAN_COMPOSE=y
-BR2_PACKAGE_PYTHON_RPI_GPIO=y
 BR2_PACKAGE_PYTHON_SPIDEV=y
 BR2_PACKAGE_ALSA_PLUGINS=y
 BR2_PACKAGE_LIBVORBIS=y
@@ -319,6 +318,8 @@ BR2_PACKAGE_HOST_MTOOLS=y
 BR2_PACKAGE_HOST_PKGCONF=y
 BR2_PACKAGE_BTSPEAKER=y
 BR2_PACKAGE_HOSTNAME_SERVICE=y
+BR2_PACKAGE_LIBGPIOD2=y
+BR2_PACKAGE_LIBGPIOD2_TOOLS=y
 BR2_PACKAGE_NCPAMIXER=y
 BR2_PACKAGE_OVOS_BUS_SERVER=y
 BR2_PACKAGE_OVOS_CONTAINERS=y
@@ -332,6 +333,5 @@ BR2_PACKAGE_RPI_EEPROM=y
 BR2_PACKAGE_USERLAND_TOOLS=y
 BR2_PACKAGE_VOCALFUSION=y
 BR2_PACKAGE_WIFI_CONNECT=y
-BR2_PACKAGE_PYTHON_SMBUS2=y
 BR2_PACKAGE_PYTHON_ADAFRUIT_BLINKA=y
-BR2_PACKAGE_PYTHON_GPIOD=y
+BR2_PACKAGE_PYTHON_SMBUS2=y

buildroot-external/package/libgpiod2/Config.in

@@ -0,0 +1,27 @@
+config BR2_PACKAGE_LIBGPIOD2
+	bool "libgpiod2"
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_10
+	depends on !BR2_PACKAGE_LIBGPIOD
+	help
+	  This is a C library that abstracts the GPIO character
+	  device operations on linux.
+
+	  https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/
+
+	  This package is the continuation of the libgpiod package
+	  for versions 2.0 and above.
+
+	  Note that a kernel of 5.10 or above is required for the
+	  ioctls to work.
+
+if BR2_PACKAGE_LIBGPIOD2
+
+config BR2_PACKAGE_LIBGPIOD2_TOOLS
+	bool "install tools"
+	help
+	  Include a set of command-line tools for managing GPIOs.
+
+endif
+
+comment "Consider upgrading to libgpiod2"
+	depends on BR2_PACKAGE_LIBGPIOD

buildroot-external/package/libgpiod2/libgpiod2.hash

@@ -0,0 +1,4 @@
+# From https://www.kernel.org/pub/software/libs/libgpiod/sha256sums.asc
+sha256  fa4024a080121c958502f9a46a5bda44bea85e7a4dd7fcb3dead463b6fc4261c  libgpiod-2.1.tar.xz
+# Hash for license file
+sha256  eb17a56966db5d986bec449ee44ed61f01f9e3fafa952e527db67a8f9594fd11  COPYING

buildroot-external/package/libgpiod2/libgpiod2.mk

@@ -0,0 +1,30 @@
+################################################################################
+#
+# libgpiod2
+#
+################################################################################
+
+# Be careful when bumping versions.
+# Dependency on kernel header versions may change.
+LIBGPIOD2_VERSION = 2.1
+LIBGPIOD2_SOURCE = libgpiod-$(LIBGPIOD2_VERSION).tar.xz
+LIBGPIOD2_SITE = https://www.kernel.org/pub/software/libs/libgpiod
+LIBGPIOD2_LICENSE = LGPL-2.1+
+LIBGPIOD2_LICENSE_FILES = COPYING
+LIBGPIOD2_INSTALL_STAGING = YES
+LIBGPIOD2_DEPENDENCIES = host-pkgconf host-autoconf-archive
+LIBGPIOD2_CONF_OPTS = --disable-tests --disable-examples --disable-bindings-python
+
+ifeq ($(BR2_PACKAGE_LIBGPIOD2_TOOLS),y)
+LIBGPIOD2_CONF_OPTS += --enable-tools
+else
+LIBGPIOD2_CONF_OPTS += --disable-tools
+endif
+
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
+LIBGPIOD2_CONF_OPTS += --enable-bindings-cxx
+else
+LIBGPIOD2_CONF_OPTS += --disable-bindings-cxx
+endif
+
+$(eval $(autotools-package))