Re: How does mmap work?

except that jffs2 is compressed, so you can't directly map anyway.

iirc mmap will return an error for any file on jffs2

one byte changes would still mean a block write. that could eat up flash 
quickly. large writes or even writev() would be much faster on jffs2.

Scott Thibault wrote:
> Hello,
> 
> I assume mmap just gives me a pointer to the actual memory location of a
> file, since files are all in memory anyway.  Is that correct?  So, I should
> be able to access files with zero memory usage and copying right (unless its
> on a card, of course), right?
> 
> --Scott Thibault
> AcroDesign Technologies
> http://www.acrodesigntech.com
> 
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