nuttx/drivers/Kconfig
Gregory Nutt 21aef0dd68 drivers/*/Kconfig: Consolidate driver Kconfig Files.
This commit does two things:

1. First, it reorganizes the driver Kconfig files so that each is self contained.  Before, a part of the driver configuration was in drivers/Kconfig and the rest was in in drivers/xyz/Konfig.  Now, all of the driver configuration is consolitated in the latter.

2. Second, this commit correct numerous serious errors introduced in a previous reorganization of the driver Kconfig files.  This was first noted by Nicholas Chin in PR270 for the case of the drivers/i2c/Kconfig but some examination indicates that the error was introduced into several other Kconfig files as well.

The nature of the introduced error was basically this:

- Nothing must intervene between the menuconfig selection and the following conditional configuration otpions.
- A previous PR erroneously introduced unconditional options between the menuconfig and the following confditional logic, thus corrupting the driver menus.

This error was easy to make because the driver Kconfig files were not well modularized.  Making them fully self-contained should eliminate this kind of error in the future.
2020-02-15 15:19:11 +01:00

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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config DEV_SIMPLE_ADDRENV
bool "Simple AddrEnv"
default n
config DEV_NULL
bool "Enable /dev/null"
default y
config DEV_ZERO
bool "Enable /dev/zero"
default n
config DRVR_MKRD
bool "RAM disk wrapper (mkrd)"
default n
select FS_READABLE
select FS_WRITABLE
---help---
Build the mkrd() function which serves as a wrapper to simplify
creation of RAM disks. If the boardctrl() interface is enabled,
the selecting this option will also enable the BOARDIOC_MKRD
command that will support creation of RAM disks from applications.
menu "Buffering"
config DRVR_WRITEBUFFER
bool "Enable write buffer support"
default n
---help---
Enable generic write buffering support that can be used by a variety
of drivers.
if DRVR_WRITEBUFFER
config DRVR_WRDELAY
int "Write flush delay"
default 350
---help---
If there is no write activity for this configured amount of time,
then the contents will be automatically flushed to the media. This
reduces the likelihood that data will be stuck in the write buffer
at the time of power down.
endif # DRVR_WRITEBUFFER
config DRVR_READAHEAD
bool "Enable read-ahead buffer support"
default n
---help---
Enable generic read-ahead buffering support that can be used by a
variety of drivers.
if DRVR_WRITEBUFFER || DRVR_READAHEAD
config DRVR_READBYTES
bool "Support byte read method"
default y if MTD_BYTE_WRITE
default n if !MTD_BYTE_WRITE
config DRVR_REMOVABLE
bool "Support removable media"
default n
config DRVR_INVALIDATE
bool "Support cache invalidation"
default n
endif # DRVR_WRITEBUFFER || DRVR_READAHEAD
endmenu # Buffering
source drivers/crypto/Kconfig
source drivers/loop/Kconfig
source drivers/can/Kconfig
source drivers/i2c/Kconfig
source drivers/spi/Kconfig
source drivers/i2s/Kconfig
source drivers/timers/Kconfig
source drivers/analog/Kconfig
source drivers/audio/Kconfig
source drivers/video/Kconfig
source drivers/bch/Kconfig
source drivers/input/Kconfig
source drivers/ioexpander/Kconfig
source drivers/lcd/Kconfig
source drivers/leds/Kconfig
source drivers/mmcsd/Kconfig
source drivers/modem/Kconfig
source drivers/mtd/Kconfig
source drivers/eeprom/Kconfig
source drivers/net/Kconfig
source drivers/pipes/Kconfig
source drivers/power/Kconfig
source drivers/rptun/Kconfig
source drivers/sensors/Kconfig
source drivers/serial/Kconfig
source drivers/usbdev/Kconfig
source drivers/usbhost/Kconfig
source drivers/usbmisc/Kconfig
source drivers/usbmonitor/Kconfig
source drivers/wireless/Kconfig
source drivers/contactless/Kconfig
source drivers/1wire/Kconfig
source drivers/syslog/Kconfig
source drivers/platform/Kconfig
source drivers/rf/Kconfig