parport_negotiate — negotiate an IEEE 1284 mode
int parport_negotiate ( | struct parport * | port, |
| int | mode); |
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.