2013-07-01 22:11:54 +08:00
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#
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# For a description of the syntax of this configuration file,
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# see misc/tools/kconfig-language.txt.
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#
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if SPI
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2013-07-02 02:23:26 +08:00
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2013-07-01 22:11:54 +08:00
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config SPI_OWNBUS
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bool "SPI single device"
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default n
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---help---
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Set if there is only one active device on the SPI bus. No locking or
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SPI configuration will be performed. It is not necessary for clients to
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2013-07-02 02:23:26 +08:00
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lock, re-configure, etc.
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2013-07-01 22:11:54 +08:00
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config SPI_EXCHANGE
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bool "SPI exchange"
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default y
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---help---
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Driver supports a single exchange method (vs a recvblock() and
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sndblock() methods).
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config SPI_CMDDATA
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bool "SPI CMD/DATA"
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default n
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---help---
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Devices on the SPI bus require out-of-band support to distinguish
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command transfers from data transfers. Such devices will often support
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either 9-bit SPI (yech) or 8-bit SPI and a GPIO output that selects
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between command and data.
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2013-07-02 02:23:26 +08:00
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config SPI_BITBANG
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bool "SPI bit-bang device"
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default n
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---help---
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Enable support for a generic SPI bit-bang device.
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See include/nuttx/spi/spi_bitbang.h for further information.
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2013-07-01 22:11:54 +08:00
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2013-07-02 07:49:43 +08:00
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if SPI_BITBANG
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config SPI_BITBANG_VARWIDTH
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bool "SPI bit-bang variable width transfers"
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default n
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---help---
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2013-07-02 22:25:53 +08:00
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Enable support for a variable data width transfers. Default: 8-bit
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2013-07-02 07:49:43 +08:00
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only.
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endif
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2013-07-02 02:23:26 +08:00
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endif
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