On Tue, 18 Aug 2009, Robin Callender wrote: > Ok, here are some datapoints (I hope its not just noise). > I have been working on getting the usb audio driver to work as both a speaker (playback) and microphone (capture). > I have coded the configuration to support these two audio interfaces (see linux_usb_audio_spkr_mic.pdf). > The configuration seems to parse OK, but in running with it I get the trace (summary) shown in the attached "usb_audio.summary.jpg" Is there any noteworthy information in this trace? Nothing stands out as obviously wrong. > I believe the problem is as Alan states below that the both configurations are shared on EP 1. "Both configurations"? According to the PDF file you attached, there is only one configuration. It contains three interfaces. Interface 0 doesn't use any endpoints, interface 1 uses endpoint 1 OUT, and interface 2 uses endpoint 2 IN. So what makes you think there's any sharing going on? > Is this the case, and if so how should it be resolved? 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
