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drivers: disk: add fakefat disk driver #62286

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drivers: disk: add fakefat disk driver #62286

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Commits on Oct 21, 2024

  1. drivers: disk: add fakefat disk driver 

    Fakefat disk emulates a disk formatted with the FAT file system.
The driver supports FAT16 and FAT32 emulation and multiple instances.
A backend can register at least 15 emulated files on a disk instance.
The file structure contain read and write callbacks that are called
when the filesystem driver accesses the volume. A backend can have
multiple files with read callbacks, but usually only one or zero with
write callbacks.

Fakefat disk can be used for testing or to map services such as
firmware updates to a file on the emulated disk.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Oct 21, 2024
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  2. tests: drivers: disk: add test for the FFAT disk 

    Add FAT16 and FAT32 tests for the FFAT disk using ELM FAT file system
support.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Oct 21, 2024
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  3. samples: usb: add ffatdisk sample 

    This sample has two volumes, FAT16 and FAT32, exported via
new USB device MSC support.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Oct 21, 2024
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