|int tfXmitInterface||(ttUserInterface interfaceHandle);|
tfXmitInterface() is used to call the device driver send function with the next packet ready to be transmitted in the device/interface send queue. The packet is sent in the context of the caller of this function.
- The interface handle of the device to which to send the data.
- No packet was ready to be transmitted.
- The device/interface was not opened or configured.
- The device driver send function returned an error. The Treck stack free'd the packet since the device driver send failed.