drivers/iio/buffer/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Industrial I/O generic buffer implementations
   4 #
   5 # When adding new entries keep the list in alphabetical order
   6
   7 config IIO_BUFFER_CB
   8         tristate "IIO callback buffer used for push in-kernel interfaces"
   9         help
  10           Should be selected by any drivers that do in-kernel push
  11           usage.  That is, those where the data is pushed to the consumer.
  12
  13 config IIO_BUFFER_DMA
  14         tristate
  15         help
  16           Provides the generic IIO DMA buffer infrastructure that can be used by
  17           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 buffer
  20           infrastructure.
  21
  22 config IIO_BUFFER_DMAENGINE
  23         tristate
  24         select IIO_BUFFER_DMA
  25         help
  26           Provides a bonding of the generic IIO DMA buffer infrastructure with the
  27           DMAengine framework. This can be used by converter drivers with a DMA port
  28           connected to an external DMA controller which is supported by the
  29           DMAengine framework.
  30
  31           Should be selected by drivers that want to use this functionality.
  32
  33 config IIO_BUFFER_HW_CONSUMER
  34         tristate "Industrial I/O HW buffering"
  35         help
  36           Provides a way to bonding when an IIO device has a direct connection
  37           to another device in hardware. In this case buffers for data transfers
  38           are handled by hardware.
  39
  40           Should be selected by drivers that want to use the generic Hw consumer
  41           interface.
  42
  43 config IIO_KFIFO_BUF
  44         tristate "Industrial I/O buffering based on kfifo"
  45         help
  46           A simple fifo based on kfifo.  Note that this currently provides
  47           no buffer events so it is up to userspace to work out how
  48           often to read from the buffer.
  49
  50 config IIO_TRIGGERED_BUFFER
  51         tristate
  52         select IIO_TRIGGER
  53         select IIO_KFIFO_BUF
  54         help
  55           Provides helper functions for setting up triggered buffers.