VeriFone MX800 Series - Svcreleaserxcallback()

SERVICE FUNCTIONS
svcReleaseRxCallback()
164 M
X
800 SERIES PROGRAMMERS GUIDE
svcReleaseRxCallback()
The svcReleaseRxCallback() function must be used when the application no
longer needs to know if data I/O has occurred on a particular device associated
with the file descriptor (handle) given. The file descriptor (fd) passed to this
function should be the same one that was used to register a callback function for
the device with svcSetRxCallback().
Prototype
short svcReleaseRxCallback(int fd)
Parameters
Return Values
The function returns 0 on success or a negative errno value if unsuccessful.
fd File descriptor returned when opening a device, with either open()
or ecrOpen().