Re: [PATCH] mmc : export hw reset function info to user

From: Andrei Warkentin
Date: Mon Sep 19 2011 - 12:19:51 EST


Hi Namjae, others,

----- Original Message -----
> From: "Namjae Jeon" <linkinjeon@xxxxxxxxx>
> To: cjb@xxxxxxxxxx, linux-mmc@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx, "Namjae Jeon" <linkinjeon@xxxxxxxxx>
> Sent: Sunday, September 18, 2011 11:20:25 AM
> Subject: [PATCH] mmc : export hw reset function info to user
>
> user app should know whether hw reset function is enable to use it.
> so I try to add sysfs file of hw reset function like enhanced area.
>

If we're going to be adding a bunch of attributes from ext_csd, why not
just allow dumping the entire ext_csd in a semi-readable form? Via something like
hex_dump_to_buffer. This will allow easy human an machine parsing, and be more
lightweight then adding a sysfs attr for each EXT_CSD byte (of which there are a lot).

I'm basing this on the thought that the only clients of these attrbutes would
either be developers or engineers involved with MMC media, or very specialized
software.

Thoughts?

A
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