Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx> writes: > It seems like your device has no bulk endpoint for DVB. > What does lsusb say ? lsusb mentions 4 different end points, all isochronous. So out of luck there. I did not know I could use lsusb to find this out. > The module parameter is called prefer_bulk, but what it actually does is > "force bulk" (which doesn't make much sense when the device has no bulk > endpoints). > I will fix this in v2 of the patch series. Well, I was hoping to get "force_bulk", so that part is not a problem for me. > Am 31.10.2012 03:39, schrieb Benny Amorsen: >> It works great with isochronous transfers on my PC and the Fedora >> kernel, but the Raspberry USB host blows up when trying to do >> isochronous mode. > > Is this a regression caused by patches or a general issue with the > Raspberry board ? It is a general issue with the Raspberry USB host controller or driver. Bulk transfers work, isochronous transfers have problems. I was hoping I could somehow convince the Nanostick to use bulk transfers instead of isochronous transfers. Since that seems to require a firmware change, I will have to give up on it. /Benny -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html