vfs_fruit provides this parameter with default ?MacSamba?. What icon should be displayed in Finder with the default and where it is found in a Mac? Since vfs_fruit provides this parameter, I assume it is there to allow user change ;-) What other values are possible? Those in /System/Library/CoreServices/CoreTypes.bundle/Contents/ ? Is the Finder icon dependent on the value transmitted in the SMB2 AAPL extensions or what is provided by mDNS/Avahi in _device-info._tcp.? Sorry, I cannot read source code.