Audio cape (again ...)

Before I break out the scope + logic analyser can I ask if anyone has a Rev B1 cape working on a BoneBlack with a recent kernel (4+?).

Using latest audio overlay (

‘# echo BB-BONE-AUDI-02 > /sys/devices/platform/bone_capemgr/slots ‘ produces some unsettling messages [1]

Checking aplay –l shows Alsa thinks a device is present [2]

Trying to play a .wav file gets [3]

There is definitely something in the correct I2C register address i2c-2 at 0x18 [4]

Now, there a some patches mentioned here:

but these appear to have been applied in 4.1.

Long time coming but question then is: Is the overlay correct? The underrun messages could be symptomatic of incorrect I2S pin-muxing or clocking.

All the spew is here:

Thanks again.