nuttx/drivers/misc/Kconfig

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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 DEV_ASCII
bool "Enable /dev/ascii"
default n
---help---
Enable the /dev/ascii device driver. This is a character driver
that will return all characters from 0x21-0x7f.
config DEV_RPMSG
bool "RPMSG Device Client Support"
default n
depends on RPTUN
config DEV_RPMSG_SERVER
bool "RPMSG Device Server Support"
default n
depends on RPTUN
config DRVR_MKRD
bool "RAM disk wrapper (mkrd)"
default n
---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.
config BLK_RPMSG
bool "RPMSG Block Client Support"
default n
depends on RPTUN
config BLK_RPMSG_SERVER
bool "RPMSG Block Server Support"
default n
depends on RPTUN
# ARCH needs to support memory access while CPU is running to be able to use
# the LWL CONSOLE
config ARCH_HAVE_RDWR_MEM_CPU_RUN
bool
default n
config LWL_CONSOLE
bool "Lightweight Link Console Support"
default n
depends on DEV_CONSOLE && ARCH_HAVE_RDWR_MEM_CPU_RUN
---help---
Use the lightweight link console which provides console over a
debug channel by means of shared memory. A terminal application
for openocd as the debugger is available in tools/ocdconsole.py.
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