initial buildroot for linux 5.15

package/rtl_433/Config.in

@@ -0,0 +1,16 @@
+config BR2_PACKAGE_RTL_433
+	bool "rtl_433"
+	depends on BR2_USE_MMU # fork()
+	depends on !BR2_STATIC_LIBS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_PACKAGE_LIBOPENSSL_ENABLE_PSK if BR2_PACKAGE_LIBOPENSSL
+	help
+	  rtl_433 (despite the name) is a generic data receiver, mainly
+	  for the 433.92 MHz, 868 MHz (SRD), 315 MHz, 345 MHz, and 915
+	  MHz ISM bands.
+
+	  https://github.com/merbanan/rtl_433
+
+comment "rtl_433 needs a toolchain w/ dynamic library, threads"
+	depends on BR2_USE_MMU
+	depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS

package/rtl_433/rtl_433.hash

@@ -0,0 +1,4 @@
+# Locally calculated
+sha256  d8b87535b4e65264018771b6b288259d81137482fc938d01e0c03ac071c03bd5  rtl_433-21.05.tar.gz
+# License file, locally calculated
+sha256  ab15fd526bd8dd18a9e77ebc139656bf4d33e97fc7238cd11bf60e2b9b8666c6  COPYING

package/rtl_433/rtl_433.mk

@@ -0,0 +1,34 @@
+################################################################################
+#
+# rtl_433
+#
+################################################################################
+
+RTL_433_VERSION = 21.05
+RTL_433_SITE = $(call github,merbanan,rtl_433,$(RTL_433_VERSION))
+RTL_433_LICENSE = GPL-2.0+
+RTL_433_LICENSE_FILES = COPYING
+
+# Force Release build to remove ASAN.
+RTL_433_CONF_OPTS = \
+	-DCMAKE_BUILD_TYPE=Release \
+	-DBUILD_DOCUMENTATION=OFF \
+	-DBUILD_TESTING=OFF \
+	-DBUILD_TESTING_ANALYZER=OFF \
+	-DENABLE_SOAPYSDR=OFF
+
+ifeq ($(BR2_PACKAGE_LIBRTLSDR),y)
+RTL_433_DEPENDENCIES += librtlsdr
+RTL_433_CONF_OPTS += -DENABLE_RTLSDR=ON
+else
+RTL_433_CONF_OPTS += -DENABLE_RTLSDR=OFF
+endif
+
+ifeq ($(BR2_PACKAGE_OPENSSL),y)
+RTL_433_DEPENDENCIES += openssl
+RTL_433_CONF_OPTS += -DENABLE_OPENSSL=ON
+else
+RTL_433_CONF_OPTS += -DENABLE_OPENSSL=OFF
+endif
+
+$(eval $(cmake-package))