aaf plugin not working raspberry pi cm4

[GitHub issues - edited]

alsa-project/alsa-plugins issue #39 was edited from steeley:

trying to send to the ALSA device aaf0. pI cm4 with kernel setup to support avb/tsn correctly. 
(Linux cm432 5.10.76-v7l-AVB_KERNEL+ #3 SMP Sat Nov 6 22:50:41 GMT 2021 armv7l GNU/Linux).

PCIe i210 network card is the interface set up correctly according to: https://tsn.readthedocs.io/avb.html

Error is:
`sudo speaker-test -p 2500 -F S16_BE -c 2 -r 48000 -D aaf0

speaker-test 1.1.9

Playback device is aaf0
Stream parameters are 48000Hz, S16_BE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 1 to 206158430
Period size range from 0 to 206158431
Requested period time 2500 us
Periods = 4
was set period_size = 120
was set buffer_size = 480
 0 - Front Left
ALSA lib pcm_aaf.c:670:(aaf_tx_pdu) Failed to send AAF PDU
Write error: -5,Input/output error
xrun_recovery failed: -5,Input/output error
Transfer failed: Input/output error
`

Issue URL     : https://github.com/alsa-project/alsa-plugins/issues/39
Repository URL: https://github.com/alsa-project/alsa-plugins