[alsa-devel] [very-RFC 7/8] AVB ALSA - Add ALSA shim for TSN

[Richard Cochran]

Now that I understand better...

On Sun, Jun 12, 2016 at 01:01:35AM +0200, Henrik Austad wrote:
> Userspace is supposed to reserve bandwidth, find StreamID etc.
> 
> To use as a Talker:
> 
> mkdir /config/tsn/test/eth0/talker
> cd /config/tsn/test/eth0/talker
> echo 65535 > buffer_size
> echo 08:00:27:08:9f:c3 > remote_mac
> echo 42 > stream_id
> echo alsa > enabled

This is exactly why configfs is the wrong interface.  If you implement
the AVB device in alsa-lib user space, then you can handle the
reservations, configuration, UDP sockets, etc, in a way transparent to
the aplay program.

Heck, if done properly, your layer could discover the AVB nodes in the
network and present each one as a separate device...

Thanks,
Richard


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