Adding more info below.
* Peter P. <peterparker(a)fastmail.com> [2016-02-28 17:53]:
Hi,
I am getting this in dmesg when I connect my HDSP Multiface via an
Expresscard to a Debian testing system which is known to operate these
cards:
[251636.327240] pci 0000:05:00.0: [10ee:3fc5] type 00 class 0x040100
[251636.327280] pci 0000:05:00.0: reg 0x10: [mem 0x00000000-0x0000ffff]
[251636.327491] pci 0000:05:00.0: supports D1 D2
[251636.327496] pci 0000:05:00.0: PME# supported from D0 D1 D2 D3hot
[251636.335144] pci 0000:05:00.0: BAR 0: assigned [mem 0xf0000000-0xf000ffff]
[251636.335176] pci 0000:05:00.0: no hotplug settings from platform
[251636.335274] cannot find the slot for index 1 (range 0-29), error: -16
[251636.335283] snd_hdsp: probe of 0000:05:00.0 failed with error -16
and the red LED on the Audio interface (which indicates an error) stays lit.
Running hdsploader manually shows that it doesn't find the card:
hdsploader - firmware loader for RME Hammerfall DSP cards
Looking for HDSP + Multiface or Digiface cards :
Card 0 : HDA Intel MID at 0xf2520000 irq 43
Card 1 : EDIROL UA-25 at usb-0000:00:1a.0-1.2, full speed
Card 29 : ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT26WW-1.07
The operating system sees the pci part of it at least:
~$ lspci | grep -i rme
05:00.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall DSP (rev 3c)
thank you for all ideas!
Peter