On Di, 21.04.20 19:54, www (ouyangxua...@163.com) wrote: > hi Lennart, > > > I mean the DBUS property. > > root@demoboard:/# busctl set-property org.freedesktop.DBus > /org/freedesktop/DBus org.freedesktop.DBus Features as 1 x > > Cannot set read-only property -- the default > > > > > root@demoboard:/# busctl set-property com.sugon.sensors.DISCRETE > /com/sugon/sensors/HDD/HDD4_Status xyz.openbmc_project.Sensor.DiscreteAll > FanDeviceInserted b true -- new add > > root@demoboard:/# > > > > I want the property on Dbus is read only. Just can modify by the > special method and cannot modify the property directly. How can I > change it like this?
Is "com.sugon.sensors.DISCRETE" a service you implemented yourself? With the sd-bus API? In sd-bus you define a writable property in a vtable with the SD_BUS_WRITABLE_PROPERTY() macro, and a read-only one with SD_BUS_PROPERTY(). But not sure I grok your question properly. Lennart -- Lennart Poettering, Berlin _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
