Thank you very much for your help。 thanks, Byron At 2020-04-21 20:53:02, "Lennart Poettering" <lenn...@poettering.net> wrote: >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
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