# SPDX-License-Identifier: GPL-2.0-only## Industrial I/O generic buffer implementations## When adding new entries keep the list in alphabetical order config IIO_BUFFER_CB	tristate "IIO callback buffer used for push in-kernel interfaces"	help	  Should be selected by any drivers that do in-kernel push	  usage.  That is, those where the data is pushed to the consumer. config IIO_BUFFER_DMA	tristate "Industrial I/O DMA buffer infrastructure"	help	  Provides the generic IIO DMA buffer infrastructure that can be used by	  drivers for devices with DMA support to implement the IIO buffer. 	  Should be selected by drivers that want to use the generic DMA buffer	  infrastructure. config IIO_BUFFER_DMAENGINE	tristate "Industrial I/O DMA buffer integration with DMAEngine"	select IIO_BUFFER_DMA	help	  Provides a bonding of the generic IIO DMA buffer infrastructure with the	  DMAEngine framework. This can be used by converter drivers with a DMA port	  connected to an external DMA controller which is supported by the	  DMAEngine framework. 	  Should be selected by drivers that want to use this functionality. config IIO_BUFFER_HW_CONSUMER	tristate "Industrial I/O HW buffering"	help	  Provides a way to bonding when an IIO device has a direct connection	  to another device in hardware. In this case buffers for data transfers	  are handled by hardware. 	  Should be selected by drivers that want to use the generic Hw consumer	  interface. config IIO_KFIFO_BUF	tristate "Industrial I/O buffering based on kfifo"	help	  A simple fifo based on kfifo.  Note that this currently provides	  no buffer events so it is up to userspace to work out how	  often to read from the buffer. config IIO_TRIGGERED_BUFFER	tristate "Industrial I/O triggered buffer support"	select IIO_TRIGGER	select IIO_KFIFO_BUF	help	  Provides helper functions for setting up triggered buffers.