Hi Ivor,
I'm not a developer but linux user. I bought a LogiLink Video-Adapter. Dev ID 05e1:0408.
I think its the 4 port version, but Logilink has physically only one input.
I also have the problem with that ioctl error 'resource temporarily unavailble'. (see below: in German "Die Ressource ist zur Zeit nicht verfügbar")
I'm using Debian Lenny with an updated kernel...
2009-06-30 18:40:21 UTC in Syntek Semicon DC-1125 Driver