Date: Thu, 4 Apr 1996 04:28:39 -0800 (PST) From: Joerg Wunsch <joerg> To: CVS-committers, cvs-all, cvs-sys Subject: cvs commit: src/sys/i386/isa lpt.c Message-ID: <199604041228.EAA24828@freefall.freebsd.org>
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joerg 96/04/04 04:28:38 Modified: sys/i386/isa lpt.c Log: Work around a braindead signal handling in many newer HP printers. They don't have BUSY de-asserted by the time they ACK (and thus cause an interrupt). The workaround is to try seeing if the BUSY will be de-asserted soon, and if not, to use an incremental backoff and semi-polled mode instead of the fixed timeout with 1/2 s we've been using previously (that caused the printer to run really slooow). Printers that have been working previously should not be affected by this. Revision Changes Path 1.53 +26 -8 src/sys/i386/isa/lpt.c
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