B&B Electronics VFG3000 - Manual User Manual

Page 249

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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.

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