SPINEL_PROP_LAST_STATUS value

Last Operation Status Format: `i` - Read-only Describes the status of the last operation. Encoded as a packed unsigned integer (see `SPINEL_STATUS_*` for list of values). This property is emitted often to indicate the result status of pretty much any Host-to-NCP operation. It is emitted automatically at NCP startup with a value indicating the reset reason. It is also emitted asynchronously on an error ( e.g., NCP running out of buffer).