The problem with posting it is that there is rather a lot, and Fuse requires a lot of implemented subroutines for writing (reads, exists, unique and so on) so if you don't mind it'd be a lot easier for me to just give you a tarball (http://www.jamescondron.co.uk/steg.tar.bz2) of the entire implementation (8k).
To test I used dd and watched the debug output from the script (fs_simple.pl). Invocation:
perl ./fs_simple.pl <mountpoint>

[download]

In reply to Re^4: Fuse / Fuse::Simple write_buffer issues by jamescondron
in thread Fuse / Fuse::Simple write_buffer issues by jamescondron

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