diff --git a/pySim/utils.py b/pySim/utils.py
index dbc7337..a1689ca 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -436,3 +436,22 @@
 			s += "\t%s # %s\n" % (i2h(content), i2s(content))
 
 	return s
+
+def init_reader(opts):
+	"""
+	Init card reader driver
+	"""
+	if opts.pcsc_dev is not None:
+		print("Using PC/SC reader interface")
+		from pySim.transport.pcsc import PcscSimLink
+		sl = PcscSimLink(opts.pcsc_dev)
+	elif opts.osmocon_sock is not None:
+		print("Using Calypso-based (OsmocomBB) reader interface")
+		from pySim.transport.calypso import CalypsoSimLink
+		sl = CalypsoSimLink(sock_path=opts.osmocon_sock)
+	else: # Serial reader is default
+		print("Using serial reader interface")
+		from pySim.transport.serial import SerialSimLink
+		sl = SerialSimLink(device=opts.device, baudrate=opts.baudrate)
+
+	return sl