I am using the FAT module on an RCM3305 RabbitCore with DC 9.5.
It seems that files in the root may have up to 12 characters in their filename (including the “.”); but files in a subdirectory may only have 9 (sometimes 10).
Using FTP Server, I can create files with names like “f2345678.xml” in the root, but I get an error 22 if I try that in a subdirectory.
In a subdirectory I can create 9 character names like. . .
but not 10 character names like. . .
however I CAN create this 10 character name!