B&B Electronics VFG3000 - Manual User Manual
Page 249

F
UNCTION
R
EFERENCE
D
RV
C
TRL
(
PORT
,
FUNCTION
,
DATA OR VALUE
???)
R
EVISION
1
P
AGE
233
D
RV
C
TRL
(
PORT
,
FUNCTION
,
DATA OR VALUE
???
)
A
RGUMENT
T
YPE
D
ESCRIPTION
port
int
The index of the driver to be controlled.
function
int
The required function to be executed.
data
cstring
Any parameter for the function.
D
ESCRIPTION
This function is used to perform a special operation on a communications driver. The number
to be placed in the
port
argument to identify the driver is the port number to which the driver
is bound. The specific action to be performed is indicated by the
function
parameter, the
values of which will depend upon the driver itself. The
data
parameter may be used to pass
addition information to the driver. Most drivers do not support this function. Where
supported, the operations are driver-specific, and are documented separately.
F
UNCTION
T
YPE
This function is active.
R
ETURN
T
YPE
int
.
E
XAMPLE
Refer to comms driver application notes for specific examples.