  As the field of quantum computing progresses to larger-scale devices,
multiplexing will be crucial to scale quantum processors. While multiplexed
readout is common practice for superconducting devices, relatively little work
has been reported about the combination of flux and microwave control lines.
Here, we present a method to integrate a microwave line and a flux line into a
single "XYZ line". This combined control line allows us to perform fast
single-qubit gates as well as to deliver flux signals to the qubits. The
measured relaxation times of the qubits are comparable to state-of-art devices
employing separate control lines. We benchmark the fidelity of single-qubit
gates with randomized benchmarking, achieving a fidelity above 99.5%, and we
demonstrate that XYZ lines can in principle be used to run parametric
entangling gates.
