after 20 minutes:
[2013-10-22 19:42:46] usb_write error on avalon_write
[2013-10-22 19:42:46] usb_write error on avalon_write
[2013-10-22 19:42:46] usb_write error on avalon_write
[2013-10-22 19:42:46] usb_write error on avalon_write
[2013-10-22 19:42:46] usb_write error on avalon_write
after cgminer restart:
2013-10-22 19:44:29] avalon detect (1:23) failed to initialise (incorrect device?)
it could be broken usb hub.....
invastigating now
my line:
--bitburner-voltage 1300 --avalon-options 115200:12:10:28:420 --queue 3 -G --avalon-fan 80
I had a lot of problems at the beginning. Some bitburners stopped working. After reboot they worked for a few minutes, then other stopped. I tried different settings. But the the system did not work stable.
Then I used this:
http://www.amazon.de/gp/product/B000KY7VY4/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1.. and all the problems are gone..
Now the system with raspi and 48 bitburners is running for days without problems. ( using --avalon-auto)