nuttx/libs/libc/misc/Kconfig
Xiang Xiao 9afb6540dc libc/ftok: Map token to the root pseduo file system directory
to ensure the generated key is unique from each other since only
root pseduo file system really support st_ino field after:
commit d35fbf534d51f7ef72382d9666a1f19e07c6f00f
Author: Xiang Xiao <xiaoxiang@xiaomi.com>
Date:   Fri Sep 16 14:24:55 2022 +0800

    fs: Allocate unique serial number for the root pseduo file system node

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-09-20 16:21:06 +08:00

77 lines
2.9 KiB
Plaintext

#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
comment "Non-standard Library Support"
config LIBC_CRC64_FAST
bool "Fast CRC64"
default n
---help---
Enable the CRC64 lookup table to compute the CRC64 faster.
config LIBC_KBDCODEC
bool "Keyboard CODEC"
default n
---help---
In NuttX, a keyboard/keypad driver is simply a character driver that
may have an (optional) encoding/decoding layer on the data returned
by the character driver. A keyboard may return simple text data
(alphabetic, numeric, and punctuation) or control characters
(enter, control-C, etc.). However, in addition, most keyboards
support actions that cannot be represented as text data. Such
actions include things like cursor controls (home, up arrow,
page down, etc.), editing functions (insert, delete, etc.), volume
controls, (mute, volume up, etc.) and other special functions.
Some special encoding may be required to multiplex these two classes
of data.
This option enables the functions that implement the encoding and
decoding of keyboard data. These are the interfaces prototyped in
include/nuttx/input/kbd_codec.h. While not correctly a part of
the C library, it is included here because the decoding side of this
interface must be accessible by end user programs.
config LIBC_SLCDCODEC
bool "Segment LCD CODEC"
default n
---help---
In NuttX, a character-oriented, segment LCD (SLCD) driver is simply
a character device that may have an (optional) encoding/decoding
layer on the data provided to the SLCD driver. The application may
provide simple text data (alphabetic, numeric, and punctuation) or
control characters (enter, control-C, etc.). However, in addition,
most SLCDs support actions that cannot be represented as text data.
Such actions include things like cursor controls (home, up arrow,
page down, etc.) and other special functions (e.g., blinking). Some
special encoding may be required to multiplex these two classes of
data.
This option enables the functions that implement the encoding and
decoding of SLCD data. These are the interfaces prototyped in
include/nuttx/lcd/slcd_codec.h. While not correctly a part of the C
library, it is included here because the encoding side of this
interface must be accessible by end user programs.
config LIBC_ENVPATH
bool "Support PATH Environment Variable"
default n
depends on !DISABLE_ENVIRON
---help---
Use the contents of the common environment variable to locate executable
or library files. Default: n
config LIBC_FTOK_VFS_PATH
string "Relative path to ftok storage"
default "/var/ftok"
---help---
The relative path to where ftok will exist in the root namespace.
config LIBC_MEM_FD_VFS_PATH
string "Relative path to memfd storage"
default "memfd"
depends on FS_TMPFS
---help---
The relative path to where memfd will exist in the tmpfs namespace.