How can i make the ffs to be Write-Protected (Read-Only)?

naftalir — Sun, 03 Apr 2016 13:26:59 GMT

Hi,

I'm running the MSD example with FFS (Flash File System) and want to enable Read-Only mode

to prevent changes on the MSD. how can it be done?

Thanks.

Re: How can i make the ffs to be Write-Protected (Read-Only)?

naftalir — Wed, 06 Apr 2016 07:58:53 GMT

Up... (No answer yet)

Re: How can i make the ffs to be Write-Protected (Read-Only)?

soledad — Tue, 12 Apr 2016 21:10:30 GMT

Hello Naftalir,

FFS library doesn’t contain any API for Read-Only mode.

For MFS there are the following constant definitions, these can be overridden to customize MFS. To override any of these definitions, simply define the desired value in the /config/<board>/user_config.h file.

#define MFSCFG_READ_ONLY 0

• Set to one to build MFS in read-only mode without create, write, or format capability. This reduces the code size and may be useful in certain applications such as bootloaders. Set to one to enable write functionality.

#define MFSCFG_READ_ONLY_CHECK 1

• This compilation option is obsolete and does not have any effect on resulting code. Runtime read-only checks are integral parts of write support so they are always present unless MFSCFG_READ_ONLY compilation option is set.

Have a great day,
Sol

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How can i make the ffs to be Write-Protected (Read-Only)?

Re: How can i make the ffs to be Write-Protected (Read-Only)?

Re: How can i make the ffs to be Write-Protected (Read-Only)?