IOCTL_FARC_GET_NEXTNODEID

Description:
query the Next-Node-ID.

Parameters:

Parameter Type Description
Input
- - -
Output
net state UCHAR the node-id of the logical neighbor in the network. The controller pass the token to this node.

Possible errors (see also Error codes):
E_FARC_INVALID_HANDLE
E_FARC_BUFFER_TOO_SMALL

Example:
Note, that the following example is only a fragment. It is recommended, that the driver is opened in asynchronous mode and a handle to the driver is available.

OVERLAPPED overlapped; DWORD read, err; BOOL ret; UCHAR nextNodeID; overlapped.Offset = 0; overlapped.OffsetHigh = 0; overlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); ... ret = DeviceIoControl(drvhandle, IOCTL_FARC_GET_NEXTNODEID, NULL, 0, &nextNodeID, sizeof(nextNodeID), &read, &overlapped); if (!ret) { err = GetLastError(); if (err == E_FARC_PENDING) { ret = GetOverlappedResult(drvhandle, &overlapped, &read, TRUE); if (!ret) { err = GetLastError(); // do errorhandling here } } else { // other error occured, perhaps wrong handle } } printf("neighbour node = %u",nextNodeID); ...

See also:
DeviceIoControl()

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