vlab@suresh:~/qemu/scripts/qmp$ nc -U ~/qmp.sock {"QMP": {"version": {"qemu": {"micro": 50, "minor": 2, "major": 9}, "package": "v9.2.0-636-gaa3a285b5b-dirty"}, "capabilities": ["oob"]}} { "execute": "qmp_capabilities" } {"return": {}} { "execute": "qom-set", "arguments": { "path": "/machine/peripheral/sensor", "property": "temperature", "value": 20000 } }

{"return": {}}

u can also set like this