| HWRM | Hardware Resource Manager |
| Trusted client | A client is considered trusted if the client has nonstandard priority defined in the internal policy of HW Resource Manager. A client can be defined trusted only by S60 or a product. |
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Vibra frozen state |
Whenever vibra is released, its current state is stored as frozen state. On next reserve, the user can specify that the frozen state be restored. |
| Vibra virtual state | Virtual state is what all control methods affect. If reservation is not suspended, then actual vibra is also set to the same state. If reservation is suspended, actual vibra is not affected by any control methods. |