|  | <title>Effect Devices Interface</title> | 
|  |  | 
|  | <note> | 
|  | <title>Suspended</title> | 
|  |  | 
|  | <para>This interface has been be suspended from the V4L2 API | 
|  | implemented in Linux 2.6 until we have more experience with effect | 
|  | device interfaces.</para> | 
|  | </note> | 
|  |  | 
|  | <para>A V4L2 video effect device can do image effects, filtering, or | 
|  | combine two or more images or image streams. For example video | 
|  | transitions or wipes. Applications send data to be processed and | 
|  | receive the result data either with &func-read; and &func-write; | 
|  | functions, or through the streaming I/O mechanism.</para> | 
|  |  | 
|  | <para>[to do]</para> | 
|  |  | 
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