linux-kernel - Re: mmc card detection

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Message-ID: <20080314235407.5f4b241c@mjolnir.drzeus.cx>
Date:	Fri, 14 Mar 2008 23:54:07 +0100
From:	Pierre Ossman <drzeus-list@...eus.cx>
To:	shri <shree0007@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: mmc card detection

Please always add the relevant maintainer as cc if you want to be sure
that you get a response.

On Thu, 6 Mar 2008 19:09:57 +0530
shri <shree0007@...il.com> wrote:

> Hi,
>    My proto board does not have a mmc card detect line to the mmc controller.
> 
>    So, I have to insert the card before i insmod the mmc drivers.
>    If i change a card i have to rmmod and insmod the driver.
> 
>    I would like to know is there anyway i can make mmc to free up all the
>    resources for the removed card. entries and reinitialise the new
> card inserted if any
>    without rmmod or insmod.
> 

Let the driver call mmc_detect_change() on a timer. See mmci.c for an
example.

Rgds
-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org
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