MFS Case sensitivity issues?

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MFS Case sensitivity issues?

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lucianomoretti
Contributor IV

Using MQX 4.1.1, we've run into an issue where it seems that the MFS drivers can write 2 files to the SD card or USB stick with file names that just differ in case. Windows does not like this though and does not properly read the files.

Is this a known issue, and is there a work-around or a patch?

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DavidS
NXP Employee
NXP Employee

Hi Luciano,

I know the MFS had a few issues with file naming and folder naming.  I think MQX4.2 had fixed them.

Can you try on MQX4.2?

If not I can look into the MQX4.1.1 to see if we could do a workaround.

Regards,

David

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lucianomoretti
Contributor IV

Would I be able to just swap out MFS and not the entire MQX or did the interface change too much?

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DavidS
NXP Employee
NXP Employee

Hi Luciano,

I can see the issue with MQX4.1.1 but not MQX4.2.

The high level access to MFS seems the same (as I compared the example applications) but when I tried a poor mans test to link in the MQX4.2 MFS library to the MQX4.1.1 application I received errors.  Seems most of them at #defines that are in MQX.h header.  I didn't try to merge them for fear that another hurdle might pop up to require evaluation/comparison of PSP's too.

There is no patch for MQX4.1.1.

A couple of options to chew on if you do not want to upgrade to latest MQX4.2:

- Have application force all lower or upper case to file names

- Try to back port the MQX4.2 MFS to MQX4.1.1

Regards,

David

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