Setting up 43907 as a USB storage device

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NaFi_2915566
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When setting up a USB Storage Device, do I have to use FATFS or can FileX be used?  FileX supports FAT32 & exFAT so it should work, right? 

Also, I cannot find a USB Storage Device  example anywhere, any pointers?

I found this Configuring CYW943907AEVAL1F as USB device but it has a scary ending: "Note: The USB Device functionality does not work for device classes (For instance, mass storage class) that use a transfer data length which is a multiple of the maximum packet size. Currently there is no workaround for this issue. The issue is being investigated and will be updated once there is a solution or workaround identified"

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Unfortunately this bug affects all the USB classes.

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