Topic: New macOS RME USB 4.04 driver – public beta test
This is our next update on our macOS USB DriverKit driver, see here for history: https://forum.rme-audio.de/viewtopic.php?id=35324
Version 4.04 has several improvements in performance and compatibility. It comes with TotalMix FX 1.77b3. The MIDI support missing in 4.03 is back.
Cubase / Nuendo users: this driver now signals the correct 'transport type', USB. Steinberg is already working on a fix so that RME's driver with this (correct) type indication will be usable within Cubase and Nuendo 12. Until then there is a very easy, simple and penalty-free workaround. Open Audio MIDI Setup, Audio Window, click on the lower left + sign, select Create Aggregate Device, then add your RME interface as the only device. This gives the interface a different transport type that Cubase accepts.
And some other important notes again:
Attention: Fireface UFX / UCX / UC / 802 and Babyface require a firmware update to versions UFX: 361, UCX: 49, UC: 127, 802 : 17 (111), Babyface: 226 to enable the use of this DriverKit driver. Link to firmware update tool:
The FUT runs on M1. But as it needs the driver, and the driver is not working as long as the device firmware has not been updated, it is necessary to first update the firmware of these interfaces using the former kernel extension driver!
Current driver version: 4.04. Included TotalMix FX: 1.77b3. This is a special DriverKit version that is not compatible to previous drivers.
System requirements: macOS 11 and up, Intel or M processor (Apple Silicon)
Installation: Double-click on driver_mac_usbdk_404.zip to expand the archive file to the driver file Fireface USB DK 404.pkg. Installation works automatically by a double-click on the pkg (package) file. Users that tried version 4.0 will not see the Allow dialog and button anymore. All others should get that dialog, and before reboot should check that in Security & Privacy, tab General, the RME driver is allowed to load. If not unlock the settings and allow it. Then reboot computer.
A previously installed kernel extension driver, like 3.27, does not need to be uninstalled. It will be overwritten automatically. After that you could set the system security back to normal, unless any other existing kernel extensions still need reduced security.
To go back to 3.27: easiest method is to drag the Fireface USB Settings app found in the folder Applications to the trash can - only use the Finder for this action. With DriverKit this Settings dialog is 'the app', upon removal all driver files belonging to it will also be removed automatically. You will be asked for permission for the removal of the extensions. If done simply reinstall the former 3.27.
As an alternative we also made a version of the 3.27 driver available that should reliably remove the DriverKit extension during its installation, see link below. The one found on our website for download is not guaranteed to always do that.
Former driver 3.27 with updated installer to remove DriverKit 4.0x:
Any feedback is much appreciated.