CVS commit: syssrc/sys/dev/ic

[Rafal Boni <rafal%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   rafal
Date:           Tue Dec 10 07:19:26 UTC 2002

Modified Files:
        syssrc/sys/dev/ic: lpt.c

Log Message:
Make this work on fast platforms by making sure signals are held for at
least 1us.  Documentation I've found for the simple (SPP) parallel port
mode says that data should be stable 500ns before STROBE, STROBE should
be pulsed for no less than 500ns, and that data should be stable another
500ns after STROBE has been de-asserted.

Makes lpt@ebus on my Sun Ultra5 work with my HP DeskJet 712C, at least in
polled mode.  Thanks to Martin for astutely noting it was probably a bug
with STROBE being pulsed too quickly.


To generate a diff of this commit:
cvs rdiff -r1.60 -r1.61 syssrc/sys/dev/ic/lpt.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.