initial buildroot for linux 5.15

package/python-serial-asyncio/Config.in

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+config BR2_PACKAGE_PYTHON_SERIAL_ASYNCIO
+	bool "python-serial-asyncio"
+	depends on BR2_PACKAGE_PYTHON3
+	select BR2_PACKAGE_PYTHON_SERIAL
+	help
+	  asyncio extension package for pyserial.
+
+	  https://github.com/pyserial/pyserial-asyncio

package/python-serial-asyncio/python-serial-asyncio.hash

@@ -0,0 +1,5 @@
+# md5, sha256 from https://pypi.org/pypi/pyserial-asyncio/json
+md5  409f32a35a3b530e6b2224e2a5b367da  pyserial-asyncio-0.6.tar.gz
+sha256  b6032923e05e9d75ec17a5af9a98429c46d2839adfaf80604d52e0faacd7a32f  pyserial-asyncio-0.6.tar.gz
+# Locally computed sha256 checksums
+sha256  64f3e548f0300d43c5af90b667150a9c57a4307c0f75fe741f76d0419905224a  LICENSE.txt

package/python-serial-asyncio/python-serial-asyncio.mk

@@ -0,0 +1,14 @@
+################################################################################
+#
+# python-serial-asyncio
+#
+################################################################################
+
+PYTHON_SERIAL_ASYNCIO_VERSION = 0.6
+PYTHON_SERIAL_ASYNCIO_SOURCE = pyserial-asyncio-$(PYTHON_SERIAL_ASYNCIO_VERSION).tar.gz
+PYTHON_SERIAL_ASYNCIO_SITE = https://files.pythonhosted.org/packages/4a/9a/8477699dcbc1882ea51dcff4d3c25aa3f2063ed8f7d7a849fd8f610506b6
+PYTHON_SERIAL_ASYNCIO_LICENSE = BSD-3-Clause
+PYTHON_SERIAL_ASYNCIO_LICENSE_FILES = LICENSE.txt
+PYTHON_SERIAL_ASYNCIO_SETUP_TYPE = setuptools
+
+$(eval $(python-package))