[U-Boot] [RFC PATCH 04/22] sandbox: fs: Add support for saving files to host filesystem

[Marek Vasut]

Dear Simon Glass,

> This allows write of files from the host filesystem in sandbox. There is
> currently no concept of overwriting the file and removing its existing
> contents - all writing is done on top of what is there. This means that
> writing 10 bytes to the start of a 1KB file will only update those 10
> bytes, not truncate the file to 10 byte slong.
> 
> If the file does not exist it is created.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

Reviewed-by: Marek Vasut <marex at denx.de>

Best regards,
Marek Vasut