SetDecibelValue
Sets the decibel value of the level control.
Declaration
kern_return_t SetDecibelValue(float in_decibel_value);Parameters
- in_decibel_value:
The decibel value to set.
Return Value
kIOReturnSuccess on success, or another value if an error occurs. For a list of error codes, see Error Codes.
Discussion
If successful, changing the scalar value sends a notification to the host to update the object state.
This method synchronizes by using the work queue created by the object.