On Wed, 14 Apr 2010, Chris Wright wrote: > So dma_map_single is the case that's failing, but you think the mask is > correct? What about the direction? The mask and direction are unquestionably correct. The mask is set up by pci_setup_device() and not changed thereafter. Furthermore, the audio works okay until another device (a DVB tuner) is plugged in. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html