linux-kernel - Re: SDIO functions?

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Message-ID: <44FDE721.2070303@mauve.plus.com>
Date:	Tue, 05 Sep 2006 22:07:45 +0100
From:	Ian Stirling <ian.stirling@...ve.plus.com>
To:	Maximus <john.maximus@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: SDIO functions?

Maximus wrote:
> Hi,
>    Just going through the sdio specs and ossman's patch.

>   What are these functions and thier numbers in CMD 53
>   Does that mean an SDIO Card can support upto 8 different functions?.
> 
>   An sdio card can be used as a wlan and camera (if it supports 2
> functions wlan and camera).

Exactly.
It supports one or zero memory functions, and up to 7 (8?) IO functions.

AIUI, there are at the moment cards with memory and wifi.

I have wondered about expander cards - a card with a microcontroller to 
do enumeration and several sockets.
This is quite complex though.
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