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#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
if SPI
config SPI_OWNBUS
bool "SPI single device"
default n
---help---
Set if there is only one active device on the SPI bus. No locking or
SPI configuration will be performed. It is not necessary for clients to
lock, re-configure, etc.
config SPI_EXCHANGE
bool "SPI exchange"
default y
---help---
Driver supports a single exchange method (vs a recvblock() and
sndblock() methods).
config SPI_CMDDATA
bool "SPI CMD/DATA"
default n
---help---
Devices on the SPI bus require out-of-band support to distinguish
command transfers from data transfers. Such devices will often support
either 9-bit SPI (yech) or 8-bit SPI and a GPIO output that selects
between command and data.
config SPI_BITBANG
bool "SPI bit-bang device"
default n
---help---
Enable support for a generic SPI bit-bang device.
See include/nuttx/spi/spi_bitbang.h for further information.
if SPI_BITBANG
config SPI_BITBANG_VARWIDTH
bool "SPI bit-bang variable width transfers"
default n
---help---
Enable support for a variable data width transfers. Default: 8-bit
only.
endif
endif
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