diff --git a/libfprint/drivers/synaptics/synaptics.c b/libfprint/drivers/synaptics/synaptics.c
index 0621b08..8d08f0d 100644
--- a/libfprint/drivers/synaptics/synaptics.c
+++ b/libfprint/drivers/synaptics/synaptics.c
@@ -476,6 +476,7 @@ list_msg_cb(FpiDeviceSynaptics *self,
 						      uid);
 
 				fpi_print_set_type (print, FP_PRINT_RAW);
+				fpi_print_set_device_stored (print, TRUE);
 				g_object_set (print, "fp-data", data, NULL);
 				g_object_set (print, "description", get_enroll_templates_resp->templates[n].user_id, NULL);
 
@@ -782,6 +783,7 @@ enroll(FpDevice *device)
 			      uid);
 
 	fpi_print_set_type (print, FP_PRINT_RAW);
+	fpi_print_set_device_stored (print, TRUE);
 	g_object_set (print, "fp-data", data, NULL);
 	g_object_set (print, "description", user_id, NULL);
 
@@ -974,9 +976,12 @@ dev_probe(FpDevice *device)
 
 	/* This is the same as the serial_number from above, hex encoded and somewhat reordered */
 	/* Should we add in more, e.g. the chip revision? */
-	serial = g_usb_device_get_string_descriptor (usb_dev,
-	                                             g_usb_device_get_serial_number_index (usb_dev),
-	                                             &error);
+	if (g_strcmp0 (g_getenv ("FP_DEVICE_EMULATION"), "1") == 0)
+		serial = g_strdup ("emulated-device");
+	else
+		serial = g_usb_device_get_string_descriptor (usb_dev,
+		                                             g_usb_device_get_serial_number_index (usb_dev),
+		                                             &error);
 
 	g_usb_device_close (usb_dev, NULL);
 
diff --git a/tests/README-umockdev b/tests/README-umockdev
index 6b44792..cabbace 100644
--- a/tests/README-umockdev
+++ b/tests/README-umockdev
@@ -10,6 +10,9 @@ To create a new umockdev test, you should:
  4. Run the test, for a capture test this would be:
       umockdev-record -i /dev/bus/usb/001/005=capture.ioctl -- ./capture.py capture.png
     This will create a capture.ioctl and capture.png file.
+    Please set the FP_DEVICE_EMULATION=1 environment variable. You may need
+    to adjust the driver to adapt to the emulated environment (mainly if it
+    uses random numbers, see synaptics.c for an example).
  5. Place all files into the driver subdirectory test/DRIVER,
     i.e. device, capture.ioctl, capture.png
  6. Add glue to meson.build
diff --git a/tests/meson.build b/tests/meson.build
index e461c6d..c8bdf76 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,9 +1,17 @@
 envs = environment()
+# Enable debug messages and abort on warnings
 envs.set('G_DEBUG', 'fatal-warnings')
 envs.set('G_MESSAGES_DEBUG', 'all')
+
+# Setup paths
 envs.set('MESON_SOURCE_ROOT', meson.build_root())
 envs.prepend('GI_TYPELIB_PATH', join_paths(meson.build_root(), 'libfprint'))
 envs.prepend('LD_LIBRARY_PATH', join_paths(meson.build_root(), 'libfprint'))
+
+# Set FP_DEVICE_EMULATION so that drivers can adapt (e.g. to use fixed
+# random numbers rather than proper ones)
+envs.set('FP_DEVICE_EMULATION', '1')
+
 envs.set('NO_AT_BRIDGE', '1')
 
 if 'virtual_image' in drivers
@@ -21,5 +29,16 @@ if 'vfs5011' in drivers
         find_program('umockdev-test.py'),
         args: join_paths(meson.current_source_dir(), 'vfs5011'),
         env: envs,
+        timeout: 10,
     )
 endif
+
+if 'synaptics' in drivers
+    test(
+        'synaptics',
+        find_program('umockdev-test.py'),
+        args: join_paths(meson.current_source_dir(), 'synaptics'),
+        env: envs,
+        timeout: 10,
+    )
+endif
\ No newline at end of file
diff --git a/tests/synaptics/custom-recorded.ioctl b/tests/synaptics/custom-recorded.ioctl
new file mode 100644
index 0000000..f7edc72
--- /dev/null
+++ b/tests/synaptics/custom-recorded.ioctl
@@ -0,0 +1,129 @@
+@DEV /dev/bus/usb/001/070
+USBDEVFS_GET_CAPABILITIES 0 7D000000
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 01
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 40 38 0 00009C37FE5C669C2D000A01014101C10000D11BB7134A090FA1000000000100000000000003
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 5 5 0 A7FE011100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE01130100
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 37 37 0 A7FE02512000014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE025400
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255010C
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550119
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550125
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550125
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550132
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255013E
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255013E
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255014B
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550157
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550164
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 37 0 0000FE02591F014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE046000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 39 0 0000FE0468214F2B014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 5 5 0 A7FE037100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 41 0 0000FE03752301012007014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 5 5 0 A7FE037200
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE037600
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 35 35 0 A7FE04651E4650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE046600
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 36 36 0 A7FE05811F014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 37 0 0000FE05831F014650312D30303030303030302D302D30303030303030302D6E6F626F6479
diff --git a/tests/synaptics/custom.ioctl b/tests/synaptics/custom.ioctl
new file mode 100644
index 0000000..4739bfc
--- /dev/null
+++ b/tests/synaptics/custom.ioctl
@@ -0,0 +1,183 @@
+@DEV /dev/bus/usb/001/070
+USBDEVFS_GET_CAPABILITIES 0 7D000000
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 01
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 40 38 0 00009C37FE5C669C2D000A01014101C10000D11BB7134A090FA1000000000100000000000003
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 5 5 0 A7FE011100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE01130100
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 37 37 0 A7FE02512000014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE025400
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255010C
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550119
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550125
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550125
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550132
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255013E
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255013E
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE0255014B
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550157
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE026000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE02550164
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 37 0 0000FE02591F014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 5 5 0 A7FE037100
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 41 0 0000FE03752301012007014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 5 5 0 A7FE037200
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE037600
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 35 35 0 A7FE04651E4650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE046600
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000000
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 6 0 0000FE046000
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 06000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910101
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 7 0 0000FE00910100
+  USBDEVFS_REAPURBNDELAY 0 1 131 0 0 7 7 0 05000000000100
+ USBDEVFS_REAPURBNDELAY 0 3 1 0 0 1 1 0 A8
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 39 0 0000FE0468214F2B014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+USBDEVFS_REAPURBNDELAY 0 3 1 0 0 36 36 0 A7FE05811F014650312D30303030303030302D302D30303030303030302D6E6F626F6479
+ USBDEVFS_REAPURBNDELAY 0 3 129 0 0 266 37 0 0000FE05831F014650312D30303030303030302D302D30303030303030302D6E6F626F6479
diff --git a/tests/synaptics/custom.py b/tests/synaptics/custom.py
new file mode 100755
index 0000000..6016799
--- /dev/null
+++ b/tests/synaptics/custom.py
@@ -0,0 +1,42 @@
+#!/usr/bin/python3
+
+import gi
+gi.require_version('FPrint', '2.0')
+from gi.repository import FPrint, GLib
+
+ctx = GLib.main_context_default()
+
+c = FPrint.Context()
+c.enumerate()
+devices = c.get_devices()
+
+d = devices[0]
+
+assert d.get_driver() == "synaptics"
+
+d.open_sync()
+
+template = FPrint.Print.new(d)
+
+def enroll_progress(*args):
+    print('enroll progress: ' + str(args))
+
+# List, enroll, list, verify, delete, list
+print("enrolling")
+p = d.enroll_sync(template, None, enroll_progress, None)
+print("enroll done")
+
+print("listing")
+stored = d.list_prints_sync()
+print("listing done")
+assert len(stored) == 1
+assert stored[0].equal(p)
+print("verifying")
+verify_res, verify_print = d.verify_sync(p)
+print("verify done")
+assert verify_res == True
+
+print("deleting")
+d.delete_print_sync(p)
+print("delete done")
+d.close_sync()
diff --git a/tests/synaptics/device b/tests/synaptics/device
new file mode 100644
index 0000000..6da3eea
--- /dev/null
+++ b/tests/synaptics/device
@@ -0,0 +1,75 @@
+P: /devices/pci0000:00/0000:00:14.0/usb1/1-1
+N: bus/usb/001/070=12010002FF10FF08CB06BD0000000000010109022700010100A0320904000003FF000000070501024000000705810240000007058303080004
+E: DEVNAME=/dev/bus/usb/001/070
+E: DEVTYPE=usb_device
+E: DRIVER=usb
+E: PRODUCT=6cb/bd/0
+E: TYPE=255/16/255
+E: BUSNUM=001
+E: DEVNUM=070
+E: MAJOR=189
+E: MINOR=69
+E: SUBSYSTEM=usb
+E: ID_VENDOR=06cb
+E: ID_VENDOR_ENC=06cb
+E: ID_VENDOR_ID=06cb
+E: ID_MODEL=00bd
+E: ID_MODEL_ENC=00bd
+E: ID_MODEL_ID=00bd
+E: ID_REVISION=0000
+E: ID_SERIAL=06cb_00bd_317bb11d90a4
+E: ID_SERIAL_SHORT=317bb11d90a4
+E: ID_BUS=usb
+E: ID_USB_INTERFACES=:ff0000:
+E: ID_VENDOR_FROM_DATABASE=Synaptics, Inc.
+A: authorized=1
+A: avoid_reset_quirk=0
+A: bConfigurationValue=1
+A: bDeviceClass=ff
+A: bDeviceProtocol=ff
+A: bDeviceSubClass=10
+A: bMaxPacketSize0=8
+A: bMaxPower=100mA
+A: bNumConfigurations=1
+A: bNumInterfaces= 1
+A: bcdDevice=0000
+A: bmAttributes=a0
+A: busnum=1
+A: configuration=
+H: descriptors=12010002FF10FF08CB06BD0000000000010109022700010100A0320904000003FF000000070501024000000705810240000007058303080004
+A: dev=189:69
+A: devnum=70
+A: devpath=1
+L: driver=../../../../../bus/usb/drivers/usb
+A: idProduct=00bd
+A: idVendor=06cb
+A: ltm_capable=no
+A: maxchild=0
+L: port=../1-0:1.0/usb1-port1
+A: power/active_duration=33942
+A: power/autosuspend=2
+A: power/autosuspend_delay_ms=2000
+A: power/connected_duration=33942
+A: power/control=on
+A: power/level=on
+A: power/persist=1
+A: power/runtime_active_time=33702
+A: power/runtime_status=active
+A: power/runtime_suspended_time=0
+A: power/wakeup=disabled
+A: power/wakeup_abort_count=
+A: power/wakeup_active=
+A: power/wakeup_active_count=
+A: power/wakeup_count=
+A: power/wakeup_expire_count=
+A: power/wakeup_last_time_ms=
+A: power/wakeup_max_time_ms=
+A: power/wakeup_total_time_ms=
+A: quirks=0x0
+A: removable=removable
+A: rx_lanes=1
+A: serial=317bb11d90a4
+A: speed=12
+A: tx_lanes=1
+A: urbnum=12
+A: version= 2.00
diff --git a/tests/umockdev-test.py b/tests/umockdev-test.py
index 7115298..931dcae 100755
--- a/tests/umockdev-test.py
+++ b/tests/umockdev-test.py
@@ -56,10 +56,25 @@ def capture():
         # Compare the images, they need to be identical
         cmp_pngs(os.path.join(tmpdir, "capture.png"), os.path.join(ddir, "capture.png"))
 
+def custom():
+    ioctl = os.path.join(ddir, "custom.ioctl")
+    device = os.path.join(ddir, "device")
+    dev = open(ioctl).readline().strip()
+    assert dev.startswith('@DEV ')
+    dev = dev[5:]
+
+    subprocess.check_call(['umockdev-run', '-d', device,
+                                           '-i', "%s=%s" % (dev, ioctl),
+                                           '--',
+                                           '%s' % os.path.join(ddir, "custom.py")])
+
 try:
     if os.path.exists(os.path.join(ddir, "capture.ioctl")):
         capture()
 
+    if os.path.exists(os.path.join(ddir, "custom.ioctl")):
+        custom()
+
 finally:
     shutil.rmtree(tmpdir)