Hi again, > > Out of curiosity, what camera are you using? Could you also share > > the patch with the quirk? > > I have no idea what camera I am using ;) > > It's some dodgy no-name thing which doesn't even have "made in China" > written on it and reports IDs belonging to a completely different kind > of camera. In a plot twist, I discovered that the original camera has already had this quirk applied 15 years ago. So my ID squatter gets the quirk too. (I think it's a squatter, the old chip was USB 2.0 and this is USB 3.0). Not sure why I believed otherwise and used to set it with modprobe. Maybe I noticed the excessive bandwdith requests made by buggy quirk, then force-enabled the quirk hoping it will solve them, then fixed the quirk to actually get it right. Michal