Svcreleaserxcallback() - VeriFone MX800 series Programmer's Manual

S F
ERVICE UNCTIONS

svcReleaseRxCallback()

svcReleaseRxCallback()
164
M X 800 S P
ERIES ROGRAMMERS
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
File descriptor returned when opening a device, with either open()
fd
or ecrOpen().
Return Values
The function returns 0 on success or a negative errno value if unsuccessful.
G
UIDE