On Di, 13.08.19 09:21, www (ouyangxuan10@xxxxxxx) wrote: > I am looking forward to your reply. > thanks, It expects that you registered an object vtable first, which lists properties. The getters in that vtable are then called for the values. This is unfortunately a bit under-documented, but basically everything defined via the SD_BUS_PROPERTY() macro for the same object path is included (given the right flags) in the message. Lennart -- Lennart Poettering, Berlin _______________________________________________ systemd-devel mailing list systemd-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/systemd-devel