initial buildroot for linux 5.15

package/python-opcua-asyncio/Config.in

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+config BR2_PACKAGE_PYTHON_OPCUA_ASYNCIO
+	bool "python-opcua-asyncio"
+	depends on BR2_PACKAGE_PYTHON3
+	select BR2_PACKAGE_PYTHON_AIOFILES # runtime
+	select BR2_PACKAGE_PYTHON_CRYPTOGRAPHY # runtime
+	select BR2_PACKAGE_PYTHON_DATEUTIL # runtime
+	select BR2_PACKAGE_PYTHON_LXML # runtime
+	select BR2_PACKAGE_PYTHON_PYTZ # runtime
+	help
+	  opcua-asyncio is an asyncio-based asynchronous
+	  OPC UA client based on python-opcua, removing
+	  hacks for support of python < 3.6.
+
+	  https://github.com/FreeOpcUa/opcua-asyncio

package/python-opcua-asyncio/python-opcua-asyncio.hash

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+# Locally computed
+sha256  e5fab37a92162351fe40cab43df09db8a2e9f8b8a2a8f13ed680aa6f6d687ec3  opcua-asyncio-0.8.4.tar.gz
+sha256  da7eabb7bafdf7d3ae5e9f223aa5bdc1eece45ac569dc21b3b037520b4464768  COPYING

package/python-opcua-asyncio/python-opcua-asyncio.mk

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+################################################################################
+#
+# python-opcua-asyncio
+#
+################################################################################
+
+PYTHON_OPCUA_ASYNCIO_VERSION = 0.8.4
+PYTHON_OPCUA_ASYNCIO_SOURCE = opcua-asyncio-$(PYTHON_OPCUA_ASYNCIO_VERSION).tar.gz
+PYTHON_OPCUA_ASYNCIO_SITE = $(call github,FreeOpcUa,opcua-asyncio,$(PYTHON_OPCUA_ASYNCIO_VERSION))
+PYTHON_OPCUA_ASYNCIO_SETUP_TYPE = setuptools
+PYTHON_OPCUA_ASYNCIO_LICENSE = LGPL-3.0+
+PYTHON_OPCUA_ASYNCIO_LICENSE_FILES = COPYING
+
+$(eval $(python-package))