From b58de0e8a5bf443ae4ac34b4e751ee41ce847da6 Mon Sep 17 00:00:00 2001 From: Kees Schoenmakers Date: Sun, 10 Feb 2019 22:29:14 +0100 Subject: [PATCH] Update README2 added comment about LPT dongles --- README2 | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/README2 b/README2 index f94fd77..e831eca 100644 --- a/README2 +++ b/README2 @@ -74,6 +74,14 @@ loaded a fresh copy again with a higher number. I solved my struggle by adding t between /usr/include/sys/io.h and /usr/include/asm/io.h. After a succesful "install Device::ParallelPort::drv::linux" in cpan, I removed the link again. +_EXTRA REMARK_: some LPT dongles work, other may not. I bought a second USB<->LPT dongle that turned out not to work. +It has an CH340S chip inside amd does not fulfill the requirements for the USS720 module. So be careful! +Consulting www.the-sz.com for working variants gives: +0x047E 0x1001 Agere Systems, Inc. (Lucent) USS720 Parallel Port +0x0557 0x2001 ATEN International Co., Ltd UC-1284 Printer Port +0x1293 0x0002 Belkin Components [hex] F5U002 Parallel Port [uss720] +0x0711 0x0302 Magic Control Technology Corp. Parallel Port + While the Perl-Tk implementation tries to mimmic the galblast version as best as I could, there are some differences. I am not a 'fluent' Perl programmer, but I can get most things done as I want in Perl. If someone more capable in Perl has hints and/or improvements I am happy to apply these.