G'Day,
> When I `cat 2D.serial/memory', it does not work, so I checked `cat
> statistics/errors/BUS_*' and noticed that BUS_send_data_errors was 1,
I may have been looking at the wrong thing with that: that error is
probably being flagged at some earlier time, and as such not related to
the problem I am experiencing.
I have been watching what happens when I cat `memory' with an
oscilloscope, and noted some rather unusual behaviour. For some reason,
when I cat this file the `Match ROM' command (effectively, BUS_select()
for the purposes of owfs), is being performed twice, then nothing else.
The OW_r_mem() function in ow_2433.c, however, lists a BUS_select() call
followed by BUS_send_data() and BUS_readin_data(), so I am not sure why
nothing is getting called after BUS_select(), nor why that function is
being called twice.
Because the DS2431 I am using is sharing almost identical code to the
DS2433, I was wondering if anyone has either device and is able to
observe similar behaviour, or have any suggestions as to what may be
going on here. I watched closely, and there were definitely no
additional calls to the omap_owire kernel driver, and if the
BUS_*/OMAP_* functions were to fail they should produce an error, so it
seems more likely that the functions are never being called.
-- Matthew
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