Laurent . wrote: > I made an embedded device that has a CODEC with 6 inputs connected to an ARM9 > micro-controller that has an integrated high-speed USB controller. > Now, I need to write the USB code on that micro-controller so that i can capture those > channels in real-time at 24bits / 48 KHz with low latency (ie. sub 10ms), on a computer. > > I only need my device to work with Linux, and if possible, I would like to avoid writing a device > driver on the Linux-side. > > Is there already such a USB audio driver available that I could nearly use "as is" and to which > i would conform ? Yes, snd-usb-audio. > Would you have some general guideline on how to write the high-speed USB device code ? Just conform to the USB (2.0) and USB Audio (1.0) specifications. > For simplicity, my device is going to be the "clock master" of the system since it is already has > the exact clock that drives the CODEC. So you'd use an asynchronous endpoint. Best regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
