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user space access to parallel port

Posted 06-17-2012 at 10:53 PM by neonsignal

When using a parallel port for a printer, typically it will be accessed through a kernel printer driver.

However, the parallel port can also be used as a multi-purpose bit port from user space. This can be done by loading the ppdev driver:
Code:
modprobe ppdev
In the past, you would also have to create the access node, but this is now scripted and will happen automatically:
Code:
mknod /dev/parport0 c 99 0 -m 660
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