* @ppos: The current position in @file
*
* This function provides a write implementation for the "window" interface
* @ppos: The current position in @file
*
* This function provides a write implementation for the "window" interface
* in us that will be considered one sample period. Conceptually, windows
* occur back-to-back and contain a sample width period during which
* actual sampling occurs. Can be used to write a new total window size. It
* in us that will be considered one sample period. Conceptually, windows
* occur back-to-back and contain a sample width period during which
* actual sampling occurs. Can be used to write a new total window size. It