i've just installed latest stable debian over an old mdk dist.. and i had no problems getting the hdsp running with exactly the same hardware in mdk, so it must be something with my config in debian and/or alsa. below's some info, let me know if you wanna see anything else.. but it looks like it's there and everything (snd-hdsp etc is loaded without errors) but when running e.g. hdspmixer it can't find the card. i didnt forget to run update-modules. i installed and ran everything as root according to the instructions on the page for the hdsp on the offical alsa site.. /anders % cat /etc/modutils/alsa # ALSA portion alias char-major-116 snd alias snd-card-0 snd-hdsp # module options should go here # OSS/Free portion alias char-major-14 soundcore alias sound-slot-0 snd-card-0 % cat /root/.asoundrc pcm.hdsp { type hw card 0 } ctl.hdsp { type hw card 0 } % lspci -vv ... 0000:00:07.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall DSP (rev 96) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 255 Interrupt: pin A routed to IRQ 18 Region 0: Memory at dfff0000 (32-bit, non-prefetchable) [size=64K] ... % cat /proc/asound/card0/hdsp RME Hammerfall HDSP 9632 (Card #1) Buffers: capture dd200000 playback dd000000 IRQ: 18 Registers bus: 0xdfff0000 VM: 0xe0991000 Control register: 0x6b0040de Control2 register: 0x0 Status register: 0x32000000 Status2 register: 0xffff8701 FIFO status: 0 MIDI1 Output status: 0xffffff00 MIDI1 Input status: 0xffffff00 MIDI2 Output status: 0xffffff00 MIDI2 Input status: 0xffffff00 Use Midi Tasklet: on Buffer Size (Latency): 8192 samples (2 periods of 32768 bytes) Hardware pointer (frames): 0 Precise pointer: on Line out: on Firmware version: 1 Sample Clock Source: Internal 48 kHz Preferred Sync Reference: ADAT1 AutoSync Reference: None AutoSync Frequency: 0 System Clock Mode: Master System Clock Frequency: 48000 IEC958 input: Coaxial IEC958 output: Coaxial only IEC958 quality: Consumer IEC958 emphasis: off IEC958 NonAudio: off IEC958 sample rate: Error flag set ADAT1: No Lock SPDIF: No Lock Word Clock: No Lock ADAT Sync: No Lock AD Gain : +4 dBu DA Gain : +4 dBu Phones Gain : 0 dB XLR Breakout Cable : no AEB : off (ADAT1 external)