Support of removable MTD devices and other advanced features (follow-up from lkml)

Jörn Engel joern at logfs.org
Sat May 24 13:56:48 EDT 2008


On Sat, 24 May 2008 06:12:23 -0700, Alex Dubov wrote:
> 
> Do UBI and JFFS always operate in terms of whole eraseblocks or they may
> attempt  partial block writes? Different flash chips have different
> capabilities in regard to writing and this can be used to some advantage.

Writes happen in multiples of mtd->writesize.  Which for NAND is
pagesize.  There are also special cases with subpage writes.  AFAIK only
UBI exploits that feature.

Jörn

-- 
Joern's library part 15:
http://www.knosof.co.uk/cbook/accu06a.pdf



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