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#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config ADC
bool "Analog-to-Digital Conversion"
default n
---help---
Select to enable support for analog input device support. This includes
not only Analog-to-Digital Converters (ADC) but also amplifiers and
analog multiplexers.
if ADC
config ADC_FIFOSIZE
int "ADC buffer size"
default 8
---help---
This variable defines the size of the ADC ring buffer that is used
to queue received ADC data until they can be retrieved by the
application by reading from the ADC character device. NOTE: Since
this is a ring buffer, the actual number of bytes that can be
retained in buffer is (ADC_FIFOSIZE - 1).
config ADC_ADS125X
bool "TI ADS1255/ADS1256 support"
default n
select SPI
if ADC_ADS125X
config ADS1255_FREQUENCY
int "ADS1255/ADS1256 SPI frequency"
default 1000000
endif # ADC_ADS125X
config ADC_PGA11X
bool "TI PGA112/3/6/7 support"
default n
select SPI
---help---
Enables support for the PGA112, PGA113, PGA116, PGA117 Zer�-Drift
PROGRAMMABLE GAIN AMPLIFIER with MUX
if ADC_PGA11X
config PGA11X_SPIFREQUENCY
int "TI PGA112/3/6/7 SPI frequency"
default 1000000
---help---
PGA11x SPI frequency.
config PGA11X_SPIMODE
int "TI PGA112/3/6/7 SPI mode"
default 0
---help---
PGA11x SPI mode. The specification says that the device operates in Mode 0 or
Mode 3. But sometimes you need to tinker with this to get things to work
correctly. Default: Mode 0
config PGA11X_DAISYCHAIN
bool "TI PGA112/3/6/7 daisy chain mode"
default n
---help---
Enable support to use two PGA116/7's in Daisy Chain configuration.
config PGA11X_MULTIPLE
bool "Multiple TI PGA112/3/6/7 support"
default n
depends on !PGA11X_DAISYCHAIN
---help---
Can be defined to support multiple PGA11X devices on board with separate
chip selects (not daisy chained). Each device will require a customized
SPI interface to distinguish them when SPI_SELECT is called with
devid=SPIDEV_MUX.
endif # if ADC_PGA11X
endif # ADC
config DAC
bool "Digital-to-Analog Conversion"
default n
---help---
Select to enable support for Digital-to-Analog Converters (DACs).
if DAC
config DAC_AD5410
bool "AD5410 support"
default n
select SPI
endif # DAC
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