Just an update to my previous mail. After some search among alsa users, I have found that a possible cause of the problem is a bug in ehci_hcd. Sometimes, full speed audio transfers cannot be scheduled through a high-speed hub because of the wrong estimation that there is not enough bandwidth. In addition, the problem does not occur in Ubuntu 10.10. Does this mean that I have to use and updated version of ehci_hcd somehow?
On Mon, 11 Jul 2011 05:32 PM, Konstantinos Birkos <[email protected]> wrote: > Dear all, > > I am using an external USB audio capturing device (XLR to USB converter) > that is connected via a USB hub to an Alix 3d3 board running Voyage MPD > 0.7. When trying to record using the arecord utility, I get the > following error: > > arecord: pcm_read: 1692: read error: Input/output error > > The error does not occur when I connect the USB audio device directly to > the board. What am I possibly missing? > > Thanks in advance > > -- > Konstantinos Birkos > PhD Student > Wireless Telecommunication Laboratory > Department of Electrical and Computer Engineering > University of Patras > Patras, Greece > Tel.: +30 2610 996465 > > > _______________________________________________ > Voyage-linux mailing list > [email protected] > http://list.voyage.hk/mailman/listinfo/voyage-linux > _______________________________________________ Voyage-linux mailing list [email protected] http://list.voyage.hk/mailman/listinfo/voyage-linux
