This function is used when changed_device was modified into its new form
device. This will post a DEVICE_CHANGED message on the bus to let
the application know that the device was modified. #GstDevice is immutable
for MT. safety purposes so this is an "atomic" way of letting the application
know when a device was modified.
This function is used when changed_device was modified into its new form device. This will post a DEVICE_CHANGED message on the bus to let the application know that the device was modified. #GstDevice is immutable for MT. safety purposes so this is an "atomic" way of letting the application know when a device was modified.