Laczen opened a new pull request, #16789:
URL: https://github.com/apache/nuttx/pull/16789
## Summary
NVBLK provides a block device that operates on top of a non volatile memory
(as a mtd device) that enables wear levelling for non volatile memory. It's
operation is similar to the dhara wear levelling library, but nvblk is meant to
be used on smaller (nor, mram, rram) memory.
I am also the author and maintainer of the nvblk library.
A block device can be created during startup by using:
```
nvblk_initialize(0, mtd, CONFIG_MTD_NVBLK_DEFAULT_LBS,
CONFIG_MTD_NVBLK_DEFAULT_IOBS,
CONFIG_MTD_NVBLK_DEFAULT_SPEB);
```
and a fat filesystem on top of this as:
```
nsh> mkfatfs /dev/mtdblock0
nsh> mount -t vfat /dev/mtdblock0 /mnt
```
this fat filesystem can then be used:
```
nsh> echo "test" > /mnt/test.txt
nsh> cat test.txt
test
nsh>
```
## Impact
Impact on users: none, new type of block device is provided for future use
Impact on build proces: none, new type of block device is provided for
future use
Impact on hardware: none,
Impact on documentation: none (a sample config will be added),
Impact on security: none,
Impact on compatibility: none
## Testing
The correct operation of this block device was verified on esp32-devkitc.
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