ProSoft Technology MVI69E-LDM - Manual (Page 69)

MVI69E-LDM ♦ "C" Programmable Contents
Linux Application Development Module Developer's Manual
ProSoft Technology, Inc. Page 69 of 130
August 21, 2014
MVI69_OpenNB
Syntax
int MVI69_OpenNB(MVI69HANDLE *handle);
Parameters
Handle pointer to variable of type MVI69HANDLE
Description
MVI69_OpenNB acquires access to the API and sets Handle to a unique ID that the application
uses in subsequent functions. This function must be called before any of the other API
functions can be used.
The purpose of this function is to provide access to certain API functions even if the API is
already in use by another program. This function does not provide access to the backplane;
however, it does provide access to the following functions.
MVI69_GetModuleInfo
MVI69_GetSerialConfig
MVI69_SetSerialConfig
MVI69_GetSetupJumper
MVI69_SetLED
MVI69_GetVersionInfo
IMPORTANT: Once the API has been opened,
MVI69_Close
should always be called before exiting the
application.
Return Value
MVI69_SUCCESS API was opened successfully
MVI69_ERR_REOPEN API is already open
MVI69_ERR_NODEVICE Backplane driver could not be accessed.
Note:
MVI69_ERR_NODEVICE
is returned if the backplane device driver is not loaded.
Example:
MVI69Handle Handle;
if ( MVI69_OpenNB(&handle)!=MVI69_SUCCESS) {
printf ("Open failed!\n");
} else {
printf ("Open succeeded\n");
}
See Also
MVI69_Open
MVI69_Close