Hi,
On Am33xx I am using a bluetooth adapter over musb host using cppi41.
I'm doing some Bluetooth Audio using a USB adapter. It using RFCOMM and
SCO (the former uses bulk transfer the latter uses isochronous
transfers), i am missing a packet in a bulk transfer after the
isochronous transfer stopped.
This seems to happens after isochronous packet was received, i can
receive still data from the bluetooth adapter, but the first send does
not seem to happen, even though I am seeing the tx complete interrupt. I
mean, I am expecting a response from the adapter that I do not see. So I
guess that the adapter did not receive the message. I also tried
different adapters to rule out.
I have a very simple code that can reproduce the issue on 1/3 rate.
I noticed that If I don't establish the audio connection, there is no
packet loss.
The kernel on this device is 4.9 kernel with
https://lkml.org/lkml/2017/8/14/1167
I am open to any suggestion and can provide details if needed.
Thanks
Frédéric
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