Date: Fri, 23 Apr 1999 19:20:23 -0700 (PDT) From: "David E. O'Brien" <obrien@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/ppbus lpt.c lpt.h Message-ID: <199904240220.TAA34086@freefall.freebsd.org>
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obrien 1999/04/23 19:20:22 PDT
Added files: (Branch: RELENG_3)
sys/dev/ppbus lpt.c lpt.h
Log:
Bring lpt.{c,h} from -CURRENT. These files are esentually the same as the
previous nlpt.{c,h}. MAJOR history was lost when nlpt.{c,h} -> lpt.{c,h}
in -CURRENT as these files weren't repository copied. So for the record:
Major ppbus commit with:
+ ECP parallel port chipset FIFO detection
+ DMA+FIFO parallel I/O handled as chipset specific
+ nlpt updated in order to use the above enhanced parallel I/O.
Use 'lptcontrol -e' to use enhanced I/O
+ Various options documented in LINT
+ Full IEEE1284 NIBBLE and BYTE modes support. See ppbus(4) for
an overview of the IEEE1284 standard
+ Detection of PnP parallel devices at boot
+ Read capability added to nlpt driver to get IEEE1284 compliant
printer status with a simple 'cat /dev/lpt0'
+ IEEE1284 peripheral emulation added to BYTE mode. Two computers
may dialog according to IEEE1284 signaling method.
See PERIPH_1284 option and /sys/dev/ppbus/ppi.c
All this code is supposed to provide basic functions for IEEE1284 programming.
ppi.c and lpt.c may act as examples.
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