#
# 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

menuconfig CAN
	bool "CAN Driver Support"
	default n
	---help---
		This selection enables building of the "upper-half" CAN driver.
		See include/nuttx/can/can.h for further CAN driver information.

source drivers/can/Kconfig

menuconfig I2C
	bool "I2C Driver Support"
	default n
	---help---
		This selection enables building of the "upper-half" I2C driver.
		See include/nuttx/i2c/i2c_master.h for further I2C driver information.

source drivers/i2c/Kconfig
source drivers/spi/Kconfig

menuconfig I2S
	bool "I2S Driver Support"
	default n
	---help---
		This selection enables selection of common I2S options.  This option
		should be enabled by all platforms that support I2S interfaces.
		See include/nuttx/audio/i2s.h for further I2S driver information.

source drivers/i2s/Kconfig
source drivers/timers/Kconfig

menuconfig ANALOG
	bool "Analog Device(ADC/DAC) Support"
	default n
	---help---
		This directory holds implementations of analog device drivers.
		This includes drivers for Analog to Digital Conversion (ADC) as
		well as drivers for Digital to Analog Conversion (DAC).
		See include/nuttx/analog/*.h for registration information.

source drivers/analog/Kconfig

menuconfig DRIVERS_AUDIO
	bool "Audio Device Support"
	default n
	---help---
		Enable support for audio device drivers.  This includes drivers for
		MP3, WMA and Ogg Vorbis encoding, decoding, as well as drivers for
		interfacing with external DSP chips to perform custom audio functions.

		NOTE: All of these drivers depend on support from the audio subsystem
		enabled with the AUDIO selection.

source drivers/audio/Kconfig

menuconfig DRIVERS_VIDEO
	bool "Video Device Support"
	default n
	---help---
		Enable support for video device drivers.

source drivers/video/Kconfig

menuconfig BCH
	bool "Block-to-Character (BCH) Support"
	default n
	---help---
		Contains logic that may be used to convert a block driver into
		a character driver.  This is the complementary conversion as that
		performed by loop.c.  See include/nuttx/drivers/drivers.h for
		registration information.

source drivers/bch/Kconfig

menuconfig INPUT
	bool "Input Device Support"
	default n
	---help---
		This directory holds implementations of input device drivers.
		This includes such things as touchscreen and keypad drivers.
		See include/nuttx/input/*.h for registration information.

source drivers/input/Kconfig
source drivers/ioexpander/Kconfig
source drivers/lcd/Kconfig
source drivers/leds/Kconfig

# MMC/SD-related platform capabilities

menuconfig MMCSD
	bool "MMC/SD Driver Support"
	default n
	---help---
		Support for MMC/SD block drivers.  MMC/SD block drivers based on
		SPI and SDIO/MCI interfaces are supported.  See include/nuttx/mmcsd.h
		and include/nuttx/sdio.h for further information.

source drivers/mmcsd/Kconfig

menuconfig MODEM
	bool "Modem Support"
	default n
	---help---
		Enable modem support.

source drivers/modem/Kconfig

menuconfig MTD
	bool "Memory Technology Device (MTD) Support"
	default n
	---help---
		Memory Technology Device (MTD) drivers.  Some simple drivers for
		memory technologies like FLASH, EEPROM, NVRAM, etc.  See
		include/nuttx/mtd/mtd.h

		(Note: This is a simple memory interface and should not be
		confused with the "real" MTD developed at infradead.org.  This
		logic is unrelated; I just used the name MTD because I am not
		aware of any other common way to refer to this class of devices).

source drivers/mtd/Kconfig

menuconfig EEPROM
	bool "EEPROM support"
	default n
	---help---
		This directory holds implementations of EEPROM drivers.

source drivers/eeprom/Kconfig

menuconfig NETDEVICES
	bool "Network Device/PHY Support"
	default n if !ARCH_HAVE_PHY
	default y if ARCH_HAVE_PHY
	depends on NET
	---help---
		Network interface driver and PHY selections.  This options enables
		selection of drivers for external Ethernet MAC chips.  The majority
		of MCUs, however, have built-in, internal Ethernet MAC peripherals
		and that Ethernet support is selected in the MCU-specific
		configuration menus.

		Most Ethernet MAC drivers, whether internal or external, will
		require configuration of an external PHY device.  That external PHY
		device is also selected via this menu.

source drivers/net/Kconfig

menuconfig PIPES
	bool "FIFO and named pipe drivers"
	default n
	---help---
		FIFO and named pipe drivers.  Standard interfaces are declared
		in include/unistd.h

source drivers/pipes/Kconfig
source drivers/power/Kconfig

menuconfig RPTUN
	bool "Remote Proc Tunnel Driver Support"
	default n
	depends on OPENAMP
	---help---
		RPTUN driver is used for multi-cores' communication.

source drivers/rptun/Kconfig

menuconfig SENSORS
	bool "Sensor Device Support"
	default n
	---help---
		Drivers for various sensors

source drivers/sensors/Kconfig

menuconfig SERIAL
	bool "Serial Driver Support"
	default y
	---help---
		Front-end character drivers for chip-specific UARTs.  This provide
		some TTY-like functionality and are commonly used (but not required
		for) the NuttX system console.  See also include/nuttx/serial/serial.h

source drivers/serial/Kconfig

menuconfig USBDEV
	bool "USB Device Driver Support"
	default n
	---help---
		USB device drivers.  See also include/nuttx/usb/usbdev.h

source drivers/usbdev/Kconfig

menuconfig USBHOST
	bool "USB Host Driver Support"
	default n
	---help---
		USB host drivers.  See also include/nuttx/usb/usbhost.h

source drivers/usbhost/Kconfig

menuconfig USBMISC
	bool "USB Miscellaneous drivers"
	default n
	---help---
		USB Miscellaneous drivers.

source drivers/usbmisc/Kconfig

menuconfig USBMONITOR
	bool "USB Monitor"
	default n
	depends on HAVE_USBTRACE
	---help---
		If USB device tracing (USBDEV_TRACE) AND/OR USB host tracing
		(USBHOST_TRACE) are enabled then this option will select the USB
		monitor.  The USB monitor is a daemon that will periodically collect
		the buffered USB trace data and dump it to the SYSLOG device.

source drivers/usbmonitor/Kconfig

menuconfig DRIVERS_WIRELESS
	bool "Wireless Device Support"
	default n
	---help---
		Drivers for various wireless devices.

source drivers/wireless/Kconfig

menuconfig DRIVERS_CONTACTLESS
	bool "Contactless Device Support"
	default n
	---help---
		Drivers for various contactless devices.

source drivers/contactless/Kconfig

menuconfig 1WIRE
	bool "1wire Device Support"
	default n
	---help---
		Drivers for various 1wire devices.

source drivers/1wire/Kconfig
source drivers/syslog/Kconfig

menuconfig SPECIFIC_DRIVERS
	bool "Board specific drivers"
	default n
	---help---
		Board specific drivers located in each board/driver folder.

source drivers/platform/Kconfig

menuconfig DRIVERS_RF
	bool "RF Device Support"
	default n
	---help---
		Drivers for various RF devices

source drivers/rf/Kconfig