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Date:      Sat, 26 Sep 2009 08:38:29 -0600
From:      Modulok <modulok@gmail.com>
To:        freebsd-questions@freebsd.org
Subject:   Tune USB latency...is that the right word?
Message-ID:  <64c038660909260738y79355067t9b19645cdd76fd2c@mail.gmail.com>

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Aside from hacking ulpt.c, is there any way to tune the USB latency? More...

I have a USB printer, which works, but it takes about 2 minutes before
FreeBSD 7.2 will send it ANY data...during that 2 minutes nothing is
hapenning. It's not a printer warmup issue either, or a cable or
anything like that, as it worked on FreeBSD 6.1 (after applying a
patch to ulpt.c as submitted by someone on this list. (You know who
you are! Thanks!) For lack of a better term is there a, "don't wait 2
minutes before you decide the printer is probably not up to USB spec
and start talking to it anyway" sysctl or something?

-Modulok-



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