+1

doc/changes/auxiliary/mr.2091.md

reviewed

··· 1 1 + u/space_overseer: Notify the device about reference space usage.

+1

doc/changes/drivers/mr.2091.md

reviewed

··· 1 1 + simulated: Support reference space usage via debug printing.

+2

doc/changes/xrt/mr.2091.md

reviewed

··· 1 1 + Add `xrt_device::ref_space_usage` function to let a `xrt_device` know if a 2 2 + reference it's powering is being used or not by any client.