My apologies if this has been discussed before, without a search it's hard
to know.
I have a device that uses the Auto Feed line as a handshake
(https://store.ibutton.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=2433&prmenbr=776)
I know almost nothing about parallel ports, but from the specs for the
device it seems as though you need to:
1) set AutoFeed low
2) write the data
3) wait for the busy line to go high
4) read the value
5) reset AutoFeed
I assume that this would be a fairly easy user level driver (performance is
not really an issue), but before I do that I would like to know if any of
the standard modes do anything similar to this. I wouldn't bother to ask,
except that it looks as though the
parport_ieee1284_nibble_mode_ok
function might correctly read a byte from this device. However, that's not
very useful and I can't find anything else that is.
If anyone can suggest a way to do this without writing the driver I would
be glad to be enlightened. My interest in not writing a driver (beyond the
obvious) is because I would like to use the Java CommAPI to access the
device if possible.
Jim
-- Jim Redman (505) 662 5156 http://www.ergotech.com-- To unsubscribe, send mail to: linux-parport-request@torque.net -- -- with the single word "unsubscribe" in the body of the message. --
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