When a board switches storage technology but wants to mount a littlefs
filesystem onto this storage it is desired to still use the same firmware.
This almost works out of the box in NuttX with the exception of setting the
correct block size, which may be different depending on the used storage.
An incorrect block size may lead to suboptimal performance or worse.
To avoid writing a firmware variant that only differs by
CONFIG_FS_LITTLEFS_BLOCK_SIZE_FACTOR this adds the option to pass the
intended block size at the mount call. To still enable the usage of the existing
options this adds a parser for comma-separated mount options, allowing multiple
options to be passed simultaneously.
Example: "autoformat,block_size_factor=4",
"autoformat,block_size_factor=1"
This is backwards compatible: single options passed without commas continue to
work as before.
Signed-off-by: alexcekay <alexander@auterion.com>
82fb723bde