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PARPORT_NEGOTIATE(9) Parallel Port Devices PARPORT_NEGOTIATE(9)

NAME

parport_negotiate - negotiate an IEEE 1284 mode

SYNOPSIS

int parport_negotiate(struct parport * port, int mode);

ARGUMENTS

port
port to use
mode
mode to negotiate to

DESCRIPTION

Use this to negotiate to a particular IEEE 1284 transfer mode. The mode parameter should be one of the constants in parport.h starting IEEE1284_MODE_xxx.
The return value is 0 if the peripheral has accepted the negotiation to the mode specified, -1 if the peripheral is not IEEE 1284 compliant (or not present), or 1 if the peripheral has rejected the negotiation.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.