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1# SPDX-License-Identifier: GPL-2.0-only2#3# Industrial I/O generic buffer implementations4#5# When adding new entries keep the list in alphabetical order6 7config IIO_BUFFER_CB8 tristate "IIO callback buffer used for push in-kernel interfaces"9 help10 Should be selected by any drivers that do in-kernel push11 usage. That is, those where the data is pushed to the consumer.12 13config IIO_BUFFER_DMA14 tristate "Industrial I/O DMA buffer infrastructure"15 help16 Provides the generic IIO DMA buffer infrastructure that can be used by17 drivers for devices with DMA support to implement the IIO buffer.18 19 Should be selected by drivers that want to use the generic DMA buffer20 infrastructure.21 22config IIO_BUFFER_DMAENGINE23 tristate "Industrial I/O DMA buffer integration with DMAEngine"24 select IIO_BUFFER_DMA25 help26 Provides a bonding of the generic IIO DMA buffer infrastructure with the27 DMAEngine framework. This can be used by converter drivers with a DMA port28 connected to an external DMA controller which is supported by the29 DMAEngine framework.30 31 Should be selected by drivers that want to use this functionality.32 33config IIO_BUFFER_HW_CONSUMER34 tristate "Industrial I/O HW buffering"35 help36 Provides a way to bonding when an IIO device has a direct connection37 to another device in hardware. In this case buffers for data transfers38 are handled by hardware.39 40 Should be selected by drivers that want to use the generic Hw consumer41 interface.42 43config IIO_KFIFO_BUF44 tristate "Industrial I/O buffering based on kfifo"45 help46 A simple fifo based on kfifo. Note that this currently provides47 no buffer events so it is up to userspace to work out how48 often to read from the buffer.49 50config IIO_TRIGGERED_BUFFER51 tristate "Industrial I/O triggered buffer support"52 select IIO_TRIGGER53 select IIO_KFIFO_BUF54 help55 Provides helper functions for setting up triggered buffers.56