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_KFIFO_BUF 33 tristate "Industrial I/O buffering based on kfifo" 34 help 35 A simple fifo based on kfifo. Note that this currently provides 36 no buffer events so it is up to userspace to work out how 37 often to read from the buffer. 38 39config IIO_TRIGGERED_BUFFER 40 tristate 41 select IIO_TRIGGER 42 select IIO_KFIFO_BUF 43 help 44 Provides helper functions for setting up triggered buffers. 45