Sending variant of type bool to phosphor-dbus-monitor

[Moria Zuberi]

Hi,

I am trying to invoke a DBus method to turn on an LED *assert led group) via DBus with phosphor-dbus-monitor.

The method’s signature is (can also be done with set-property, but I don’t think phosphor-dbus-monitor supports this type of callback) :
busctl call xyz.openbmc_project.LED.GroupManager /xyz/openbmc_project/led/groups/attention_on org.freedesktop.DBus.Properties Set ssv xyz.openbmc_project.Led.Group Asserted b true

And in the .yaml file I write:
- name: atten led on
  description: >
    'Turn on attention LED.'
  class: callback
  callback: method
  service: xyz.openbmc_project.LED.GroupManager
  path: /xyz/openbmc_project/led/groups/attention_on
  interface: org.freedesktop.DBus.Properties
  method: Set
  args:
    - value: xyz.openbmc_project.Led.Group
      type: string
    - value: Asserted
      type: string
    - value: true
      type: boolean

But then I get DBus error:
method call time=172.359041 sender=:1.49 -> destination=xyz.openbmc_project.LED.GroupManager serial=112 path=/xyz/openbmc_project/led/groups/attention_on; interface=org.freedesktop.DBus.Properties; member=Set
   string "xyz.openbmc_project.Led.Group"
   string "Asserted"
   boolean true
error time=172.359098 sender=:1.55 -> destination=:1.49 error_name=org.freedesktop.DBus.Error.InvalidSignature reply_serial=112
   string "Incorrect signature when setting property 'Asserted', expected 'v', got 'b'."

I have also tried to set ‘type’ in the .yaml to “variant” and also “variant[boolean]”, but these did not compile.

Thanks,
Moria

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