diff --git a/packages/epics-asyn/package.py b/packages/epics-asyn/package.py
new file mode 100644
index 0000000..fee48d2
--- /dev/null
+++ b/packages/epics-asyn/package.py
@@ -0,0 +1,33 @@
+# Copyright Spack Project Developers. See COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class EpicsAsyn(MakefilePackage):
+    """A general purpose facility for interfacing device specific code to low level drivers. asynDriver allows non-blocking device support that works with both blocking and non-blocking drivers."""
+
+    homepage = "https://epics-modules.github.io/master/asyn/"
+    url = "https://github.com/epics-modules/asyn/archive/R4-43.tar.gz"
+
+    # https://github.com/epics-modules/asyn/blob/master/LICENSE
+    license("Other", checked_by="eflumerf")
+
+    version("4-43", sha256="2cd1da9bafc6e09d18992d00797ea4b966d7404be2fb0d309bc3f542e6b3c7ba")
+
+    depends_on("c", type="build")
+    depends_on("cxx", type="build")
+
+    depends_on("epics-base")
+    depends_on("libtirpc")
+
+    def edit(self, spec, prefix):
+        release = FileFilter("configure/RELEASE")
+        release.filter("^#EPICS_BASE *=.*", f"EPICS_BASE = {spec['epics-base'].prefix}")
+        config_site = FileFilter("configure/CONFIG_SITE")
+        config_site.filter("^# TIRPC=YES", "TIRPC=YES")
+        pass
+
+    def install(self, spec, prefix):
+        make("INSTALL_LOCATION=" + prefix, "install")
diff --git a/packages/epics-streamdevice/package.py b/packages/epics-streamdevice/package.py
new file mode 100644
index 0000000..c5afd20
--- /dev/null
+++ b/packages/epics-streamdevice/package.py
@@ -0,0 +1,38 @@
+# Copyright Spack Project Developers. See COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class EpicsStreamdevice(MakefilePackage):
+    """StreamDevice is a generic EPICS device support for devices with a "byte stream" based communication interface.
+    That means devices that can be controlled by sending and receiving strings (in the broadest sense, including non-printable characters and even null-bytes).
+    Examples for this type of communication interface are serial line (RS-232, RS-485, ...), IEEE-488 (also known as GPIB or HP-IB), and telnet-like TCP/IP."""
+
+    homepage = "https://paulscherrerinstitute.github.io/StreamDevice/"
+    url = "https://github.com/paulscherrerinstitute/StreamDevice/archive/refs/tags/2.8.26.tar.gz"
+
+    license("LGPL-3.0-only", checked_by="eflumerf")
+
+    version("2.8.26", sha256="0c212245fb4626a94e291a6744f5483343b3b896907693c6a71048de68faabc4")
+
+    variant("asyn", default=True, description="Enable asyn support")
+    variant("pcre", default=True, description="Enable pcre support")
+
+    depends_on("epics-base")
+    depends_on("epics-asyn", when="+asyn")
+    depends_on("pcre", when="+pcre")
+
+    def edit(self, spec, prefix):
+        release = FileFilter("configure/RELEASE")
+        release.filter("^EPICS_BASE *=.*", f"EPICS_BASE = {spec['epics-base'].prefix}")
+        if "+asyn" in spec:
+            release.filter("^ASYN *=.*", f"ASYN = {spec['epics-asyn'].prefix}")
+        if "+pcre" in spec:
+            release.filter("^PCRE *=.*", f"PCRE_INCLUDE = {spec['pcre'].prefix.include}\nPCRE_LIB = {spec['pcre'].prefix.lib}")
+        release.filter("CALC *=.*", "#CALC") # No CALC support for now
+        pass
+
+    def install(self, spec, prefix):
+        make("INSTALL_LOCATION=" + prefix, "install")