VeriFone MX800 Series - Speaker()

DEVICE DRIVERS
speaker()
134 M
X
800 SERIES PROGRAMMERS GUIDE
speaker()
The VeriFone supplied library (libvfisvc.so) contains support for enabling /
disabling the built in speakers. Disabling the built in speakers may be desirable if
external speakers are connected to the Audio lineout connector on the multi-port
cable.
Prototype
void speaker(int mode)
Parameters
mode
0 Disbale Internal Speakers
1 Enable Internal Speakers
All other values are not supported and will give unexpected
results.