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DVB-T on Typhoon Duo Cardbus: firmware loading fails

This card used to work just fine until a few months ago. It then started
to only work once after each reboot and after a few days of this stopped
working all together. It's quite definitely a hardware defect - I went
back to backup kernel and modules as well as an untouched windows
installation without luck. I was going to send it back, but didn't get
around to it for quite a while. Before actually packaging it I tried the
current windows drivers and it mysteriously works again. Now I'd like to
have it working in my OS of choice again. ;-)
[...]
DVB:  registering new adapter (saa7133[0]).
DVB:  registering frontend 0 (Philips TDA10046H DVB-T)...
tda1004x:  setting up plls for 48MHz sampling clock
tda1004x:  timeout waiting for DSP ready
tda1004x:  found firmware revision 0 -- invalid
tda1004x:  booting from eeprom
tda1004x:  timeout waiting for DSP ready
tda1004x:  found firmware revision 0 -- invalid
tda1004x:  firmware upload failed


For the record:
After modifying the driver to load the firmware from userspace and
reprogramming the eeprom with the newest firmware from LifeView booting from
eeprom now works again. I really have no idea how or why, but it does.
I am now back to "works once per reboot". The latter problem is probably
rather related to cardbus and not v4l.

Still, maybe loading the firmware from userspace should be added as a
fallback solution (as I thought it already was)?
Any thoughts on this?

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