This may occurs before this one, https://en.bitcoin.it/wiki/Avalon6#20160125.
We always use the latest Raspberry Pi firmware with the latest Avalon Miner 6.0 MM firmware.
Anyway We still work hard to keep backward.
Firmware Details:
http://downloads.canaan-creative.com/software/avalon6/mm/2016-05-11/
ChangeLog:
* Check api fifo overflow
* Add CODE_HOTBEFORE for hot notify
* Add a new package AVA4_P_SET_FREQ
* Support device hardware error
* Fix duplicate share
* Move stratum file to a lib
* Update temp check
Communicate:
http://lists.canaan-creative.com/cgi-bin/mailman/listinfo
IRC: #avalon @freenode.net
Documents:
https://en.bitcoin.it/wiki/Avalon
time to try some new firmware
Tested it and I can't get my daisy chain to work ... I see all 4 in the UI but only one is hashing
EDIT: did a rollback to the previous version. working now.
I didn't update the Pie... it's probably that.