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101 lines
3.7 KiB
Plaintext
101 lines
3.7 KiB
Plaintext
menu "Virtual file system"
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config VFS_SUPPORT_IO
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bool "Provide basic I/O functions"
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default y
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help
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If enabled, the following functions are provided by the VFS component.
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open, close, read, write, pread, pwrite, lseek, fstat, fsync, ioctl, fcntl
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Filesystem drivers can then be registered to handle these functions
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for specific paths.
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Disabling this option can save memory when the support for these functions
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is not required.
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Note that the following functions can still be used with socket file descriptors
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when this option is disabled:
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close, read, write, ioctl, fcntl.
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config VFS_SUPPORT_DIR
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bool "Provide directory related functions"
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default y
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# If some filesystem is used, adding I/O support is probably needed and
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# is not a big overhead, compared to code size of the filesystem,
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# so make this depend on IO.
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depends on VFS_SUPPORT_IO
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help
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If enabled, the following functions are provided by the VFS component.
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stat, link, unlink, rename, utime, access, truncate, rmdir, mkdir,
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opendir, closedir, readdir, readdir_r, seekdir, telldir, rewinddir
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Filesystem drivers can then be registered to handle these functions
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for specific paths.
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Disabling this option can save memory when the support for these functions
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is not required.
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config VFS_SUPPORT_SELECT
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bool "Provide select function"
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default y
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# Dependency on !LWIP_USE_ONLY_LWIP_SELECT is for compatibility
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depends on VFS_SUPPORT_IO && !LWIP_USE_ONLY_LWIP_SELECT
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help
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If enabled, select function is provided by the VFS component, and can be used
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on peripheral file descriptors (such as UART) and sockets at the same time.
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If disabled, the default select implementation will be provided by LWIP for
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sockets only.
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Disabling this option can reduce code size if support for "select" on UART file
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descriptors is not required.
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config VFS_SUPPRESS_SELECT_DEBUG_OUTPUT
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bool "Suppress select() related debug outputs"
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depends on VFS_SUPPORT_SELECT
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default y
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help
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Select() related functions might produce an unconveniently lot of
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debug outputs when one sets the default log level to DEBUG or higher.
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It is possible to suppress these debug outputs by enabling this
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option.
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config VFS_SELECT_IN_RAM
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bool "Make VFS driver select() callbacks IRAM-safe"
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default n
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depends on VFS_SUPPORT_SELECT
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help
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If enabled, VFS driver select() callback function will be placed in IRAM.
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config VFS_SUPPORT_TERMIOS
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bool "Provide termios.h functions"
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default y
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# Very likely, only makes sense for UART VFS driver, which itself depends on VFS_SUPPORT_IO
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depends on VFS_SUPPORT_IO
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help
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Disabling this option can save memory when the support for termios.h is not required.
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config VFS_MAX_COUNT
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int "Maximum Number of Virtual Filesystems"
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default 8
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range 1 20
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depends on VFS_SUPPORT_IO
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help
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Define maximum number of virtual filesystems that can be registered.
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menu "Host File System I/O (Semihosting)"
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depends on VFS_SUPPORT_IO
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config VFS_SEMIHOSTFS_MAX_MOUNT_POINTS
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int "Host FS: Maximum number of the host filesystem mount points"
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default 1
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help
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Define maximum number of host filesystem mount points.
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endmenu
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endmenu
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