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Triggering hardware interrupts by connecting parallel port pins 9 and 10 does not work

I want to trigger hardware interrupts as described in the book Linux Device Drivers by connecting pins 9 and 10 with a wire. I tried that but apparently there's no interrupt beeing triggered: cat ...
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1answer
63 views

Sunix Low Level Parallel port driver not working

Background: I am currently in the process of updating a Industrial PC + software from Debian 4 (etch) to Debian 7 (Wheezy) due to hardware obsolescence, one of the few pieces of hardware being shared ...
3
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1answer
379 views

Cannot print text via /dev/usb/lp0 on recent printers

I have a strange problem, when I connect an old printer (HP, Epson, at last 4 years old printers) on my linux embedded board, when I type the command echo test > /dev/usb/lp0 it prints correctly. ...
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2answers
8k views

How to install a printer that is connected via an USB-to-Parallel-Port adapter?

I'm running Sabayon Linux (x86_64). $ uname -a Linux qdoe 3.7.0-sabayon #1 SMP Thu Dec 20 07:12:55 UTC 2012 x86_64 Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz GenuineIntel GNU/Linux I have a HP ...
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1answer
745 views

Can I use a parallel port as a CUPS input device?

I have an old piece of a hardware that does diagnostics on medical equipment. It prints out results over a parallel port. Is there any way to have CUPS accept jobs from a parallel port and redirect ...