Re: O_DIRECT for FAT

[OGAWA Hirofumi]

Hubertus Grobbel <hubertus@xxxxxxxxxxx> writes:

> I found out, that the option O_DIRECT for opening a file on a fat-
> filesystem successfully completes. But reading and writing to that
> file leads to EINVAL errors (using kernel 2.6.18).

EINVAL may be meaning the memory alignment which you passed to syscall
is wrong.

> Do you see a way to solve my problem by any workaround? Is O_DIRECT
> support for fat-fs feasible in future?

The fatfs is supporting O_DIRECT for read, for write it's partially
supporting (can't extend file size).
-- 
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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