> In the last few months it's been generally established that the Shuttle
> epat c8 (and possibly c7) chip isn't supported by the current epat.c. Or so
> I thought. The epat c8 is used in the newer, faster SuperDisk drives and as
> far as I know it's never worked correctly with the current driver. Last
> night, using a stock 2.2.13 kernel the drive worked flawlessly and I'm
> baffled about why it works now when epat.c is dated to 1998.
>
> Any clues? I'll be able to post some data from dmesg, my kernel config and
> /etc/modules.conf later. In the mean time, I'm still baffled.
(No I'm not back :-( but I thought I should help ...)
I'll bet that you had used the EPAT under another OS prior to trying it.
The newer EPAT has a configuration register that has to be programmed to
enable the correct output pins.
Unfortunately, without a wiring schematic, or tracing a DOS driver,
I wasn't able to find the correct way to wiggle the lines.
The actual data protocols haven't changed, there's just some additional
initialisation - and having the C8 manual didn't really help.
I didn't have any DOS drivers that worked with the C8 so I couldn't
try the "good old way".
Good luck.
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Grant R. Guenther grant@torque.net
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This archive was generated by hypermail 2b29 : Tue Apr 11 2000 - 15:08:41 EDT