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vfs/lwip: Fix docs on select() referencing wrong config

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CONFIG_LWIP_USE_ONLY_LWIP_SELECT was deprecated long time ago and removed (~ in v4.x).
Used CONFIG_VFS_SUPPORT_SELECT instead (and reverted the logic as this
is ON by default and needs to be explicitly turned off for socket only
select)
This commit is contained in:
David Cermak
2021-09-20 10:32:05 +02:00
parent cfc52bacbc
commit 10dc8543c5
3 changed files with 3 additions and 3 deletions
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docs/en/api-reference/storage/vfs.rst
+1 -1
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@@ -140,7 +140,7 @@ A socket VFS driver needs to be registered with the following functions defined:
Please see :component_file:`lwip/port/esp32/vfs_lwip.c` for a reference socket driver implementation using LWIP.
.. note::
If :cpp:func:`select` is only used on socket file descriptors, you can enable the :envvar:`CONFIG_LWIP_USE_ONLY_LWIP_SELECT` option to reduce the code size and improve performance.
If you use :cpp:func:`select` for socket file descriptors only then you can disable the :envvar:`CONFIG_VFS_SUPPORT_SELECT` option to reduce the code size and improve performance.
You should not change the socket driver during an active :cpp:func:`select` call or you might experience some undefined behavior.
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