Hi, >>... I did try this but it does not help. Maybe the >>hardware is simply defective?? Or has anybody a better >>idea what is going wrong? > I know nothing about the TT USB boxes, you could ask > TT support if this is a limitation of the box; or > you could try if it works better with Windoze. > Could also be a problem with USB isoc xfers, AFAIK > some newer boxes use bulk xfers -- maybe there's a > reason... Back in the days when I continued Holger's work, I implemented that muxpack stuff. It worked very fine, and i was even able to stream two video services at once (as long as they are below 90%*11Mbit-muxpack_overhead). This was back on kernel 2.4. I didn't touched the driver since then, but started using it some time ago with 2.6, and had these problems as well, using same hardware. ISO transfers are fine (in my eyes). (The only problem is that the bandwidth is totally static, so the muxstream will be stuffed when there's less.) I'm not sure what changed since then, maybe something with the ISO urb scheduling goes wrong, i'm not that familiar with the linux usb stuff (anymore). Another thing i could think of would be the DSP's firmware. Iirc it was uploaded when the driver is loaded, is that still the case? But it's definitely not a hardware problem. Felix
