On Oct 12, 2005, at 8:50 AM, Alan Altmark wrote:
14 == VM spool file manipulation
B8 == spool file "XAB" manipulation
These should be accessed via the reader/printer/punch device drivers
Malcolm write a few years ago, not as diagnose calls.
Two objections here:
1) Those drivers are not easy to find. They're buried in a
supplementary rpm to a fairly obscure redbook, and you have to pick
apart the rpm by hand in order to rebuild the ur stuff.
2) They're pretty slow; I imagine the DIAG interface would be a good
deal faster. In most normal cases, this is unlikely to be a
problem. In the case *we* tried to use it in, which was mail spam/
virus scanning and delivery, the ur device was actually one of the
bottlenecks (not, granted, as bad as the content scanning, but still
significant).
Oh, third objection:
3) I had to poll the machine's spool to see if anything had appeared,
because AFAIK, the ur device didn't offer interrupts to say "Hey!
Got something new here!" This may have been my own lack of knowledge
about how to drive them, though.
Adam
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