1# 2# Industrial I/O subsytem configuration 3# 4 5menuconfig IIO 6 tristate "Industrial I/O support" 7 depends on GENERIC_HARDIRQS 8 help 9 The industrial I/O subsystem provides a unified framework for 10 drivers for many different types of embedded sensors using a 11 number of different physical interfaces (i2c, spi, etc). 12 13if IIO 14 15config IIO_BUFFER 16 bool "Enable buffer support within IIO" 17 help 18 Provide core support for various buffer based data 19 acquisition methods. 20 21if IIO_BUFFER 22 23config IIO_KFIFO_BUF 24 select IIO_TRIGGER 25 tristate "Industrial I/O buffering based on kfifo" 26 help 27 A simple fifo based on kfifo. Use this if you want a fifo 28 rather than a ring buffer. Note that this currently provides 29 no buffer events so it is up to userspace to work out how 30 often to read from the buffer. 31 32config IIO_TRIGGERED_BUFFER 33 tristate 34 select IIO_TRIGGER 35 select IIO_KFIFO_BUF 36 help 37 Provides helper functions for setting up triggered buffers. 38 39endif # IIO_BUFFER 40 41config IIO_TRIGGER 42 boolean "Enable triggered sampling support" 43 help 44 Provides IIO core support for triggers. Currently these 45 are used to initialize capture of samples to push into 46 ring buffers. The triggers are effectively a 'capture 47 data now' interrupt. 48 49config IIO_CONSUMERS_PER_TRIGGER 50 int "Maximum number of consumers per trigger" 51 depends on IIO_TRIGGER 52 default "2" 53 help 54 This value controls the maximum number of consumers that a 55 given trigger may handle. Default is 2. 56 57source "drivers/iio/adc/Kconfig" 58source "drivers/iio/amplifiers/Kconfig" 59source "drivers/iio/light/Kconfig" 60source "drivers/iio/frequency/Kconfig" 61source "drivers/iio/dac/Kconfig" 62 63endif # IIO 64