1# 2# Industrial I/O generic buffer implementations 3# 4# When adding new entries keep the list in alphabetical order 5 6config IIO_BUFFER_CB 7 tristate "IIO callback buffer used for push in-kernel interfaces" 8 help 9 Should be selected by any drivers that do in-kernel push 10 usage. That is, those where the data is pushed to the consumer. 11 12config IIO_BUFFER_DMA 13 tristate 14 help 15 Provides the generic IIO DMA buffer infrastructure that can be used by 16 drivers for devices with DMA support to implement the IIO buffer. 17 18 Should be selected by drivers that want to use the generic DMA buffer 19 infrastructure. 20 21config IIO_BUFFER_DMAENGINE 22 tristate 23 select IIO_BUFFER_DMA 24 help 25 Provides a bonding of the generic IIO DMA buffer infrastructure with the 26 DMAengine framework. This can be used by converter drivers with a DMA port 27 connected to an external DMA controller which is supported by the 28 DMAengine framework. 29 30 Should be selected by drivers that want to use this functionality. 31 32config IIO_BUFFER_HW_CONSUMER 33 tristate "Industrial I/O HW buffering" 34 help 35 Provides a way to bonding when an IIO device has a direct connection 36 to another device in hardware. In this case buffers for data transfers 37 are handled by hardware. 38 39 Should be selected by drivers that want to use the generic Hw consumer 40 interface. 41 42config IIO_KFIFO_BUF 43 tristate "Industrial I/O buffering based on kfifo" 44 help 45 A simple fifo based on kfifo. Note that this currently provides 46 no buffer events so it is up to userspace to work out how 47 often to read from the buffer. 48 49config IIO_TRIGGERED_BUFFER 50 tristate 51 select IIO_TRIGGER 52 select IIO_KFIFO_BUF 53 help 54 Provides helper functions for setting up triggered buffers. 55