EmbLogic's Blog

compatibility mode communication– IEEE standard 1284-1994, parallel port device driver

RCS file: header.h,v
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included header files
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revision 1.1    locked by: emblogic;
date: 2014/11/11 05:29:43;  author: emblogic;  state: Exp;
Initial revision
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RCS file: dec.h,v
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revision 1.1    locked by: emblogic;
date: 2014/11/11 05:30:45;  author: emblogic;  state: Exp;
Initial revision
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RCS file: initialization.c,v
Working file: initialization.c
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implemented the check_region(), release_region() for checking the availability of region
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revision 1.2    locked by: emblogic;
date: 2014/11/11 05:33:43;  author: emblogic;  state: Exp;  lines: +2 -2
implemented the  request_region()
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RCS file: fileop.h,v
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RCS file: dev_open.c,v
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revision 1.1    locked by: emblogic;
date: 2014/11/11 05:32:50;  author: emblogic;  state: Exp;
Initial revision
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RCS file: dev_write.c,v
Working file: dev_write.c
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revision 1.3    locked by: emblogic;
date: 2014/11/11 05:40:03;  author: emblogic;  state: Exp;  lines: +1 -0
followed the protocols : send the strobe.
to allow the reader to read the data,before send the strobe to reader,this verified  the busy status.. ============================================================================

RCS file: cleanup.c,v
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revision 1.2    locked by: emblogic;
date: 2014/11/11 05:35:23;  author: emblogic;  state: Exp;  lines: +2 -0
implemented release_region foe releasing the region ,
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RCS file: dev_read.c,v
Working file: dev_read.c
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following the protocols first send the busy to writer.and wait for strobe signal from writer.
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revision 1.2    locked by: emblogic;
date: 2014/11/11 05:57:34;  author: emblogic;  state: Exp;  lines: +2 -2
after receiving the strobe from the writter received the data sucessfully.
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