[Linux-parport] Mode changes in Parallel Port

Ravi Shah shahravi20 at yahoo.com
Sat Feb 21 19:38:05 GMT 2004


What happens when we change the mode of the port from say SPP to Nibble or say SPP to

I understand that in some case it might make some extra registers available, but at the
same time the way handshaking is done also changes. So does that mean that hardware
starts interpreting the lines in different way in different modes? Or does that mean that
it crosses some lines through its internal logic so that correct lines affect corret

Thanks in advance for help,

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