Hi Thomas, How can I find out the firmware revision of my hdsp 9652? lspci -vv says 00:0e.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall DSP (rev 68) and /proc/asound/card0/hdsp has Firmware version: 1 rme-audio.com says the latest firmware revision for the hdsp 9652 would be 104. Is that relevant for exclusive linux use of the card? Thanks, Wolfgang