linux-kernel - Re: Need pci rescan in order to get my mmc reader

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Message-ID: <CAE2SPAaY0Svfwo6_i0k9G39WO-vN3OD-o4+o3xnyun1n=PAuMw@mail.gmail.com>
Date:	Tue, 14 Feb 2012 19:17:22 +0100
From:	Bastien ROUCARIES <roucaries.bastien@...il.com>
To:	Chris Ball <cjb@...top.org>
Cc:	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-mmc@...r.kernel.org
Subject: Re: Need pci rescan in order to get my mmc reader

ping **2

On Thu, Jan 26, 2012 at 10:54 AM, Bastien ROUCARIES
<roucaries.bastien@...il.com> wrote:
> On Mon, Jan 23, 2012 at 2:51 PM, Chris Ball <cjb@...top.org> wrote:
>> Hi,
>>
>> On Mon, Jan 23 2012, Bastien ROUCARIES wrote:
>>> On Sun, Jan 15, 2012 at 12:55 PM, bastien ROUCARIES
>>> <roucaries.bastien@...il.com> wrote:
>>>> I am hit by the same bug than here
>>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/703180
>>>>
>>>> I order to get my mmc reader functionnal I need to put a mmc card
>>>> and do a pci rescan manualy.
>>>>
>>>> What could be done  ?
>>>>
>>>> What do you need in order to help ?
>>>>
>>>> Thanks
>>
>> I'm not sure there's anything I (at the MMC layer) can do to help;
>> having a visible PCI device is a prerequisite for working MMC.
>>
>> Have you tried a recent upstream kernel, and looked for any available
>> BIOS updates for your laptop?
>
> BIOS is lasted and kernel is 3.1.
>
> I know that  PCI device is a prerequisite  but I believe it is
> possible to run some quirk on this laptop, in order to get the mmc
> reader up earlier.
>
> See also https://bugzilla.kernel.org/show_bug.cgi?id=40802
>
> perhap loading by default pci hotplug and do a rescan every second ?
>
> Bastien
>>
>> Thanks,
>>
>> - Chris.
>> --
>> Chris Ball   <cjb@...top.org>   <http://printf.net/>
>> One Laptop Per Child
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