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Message-id: <49CFAE83.5080700@archlinux.org>
Date: Sun, 29 Mar 2009 19:23:15 +0200
From: =?ISO-8859-15?Q?Thomas_B=E4chler?= <thomas@archlinux.org>
User-Agent: Thunderbird 2.0.0.21 (X11/20090319)
To: Arjan van de Ven <arjan@infradead.org>
Cc: =?ISO-8859-15?Q?Thomas_B=E4chler?= <thomas@archlinux.org>,
       linux-kernel@vger.kernel.org
Subject: Re: fastboot/async and initramfs: How am I supposed to know when
 devices are finished initializing?
References: <49CF9BA1.5030400@archlinux.org>
 <20090329091148.16a618bf@infradead.org> <49CFA2CC.9080506@archlinux.org>
 <20090329094220.4e80c267@infradead.org>
In-reply-to: <20090329094220.4e80c267@infradead.org>
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Arjan van de Ven schrieb:
>> Thanks, I will integrate that into our initramfs. Will that also work =

>> for USB mass storage (which was already problematic with older
>> kernels, you load the module you don't know how long it takes until
>> the sdX devices are created)?
>=20
> in part.
>=20
> The problem with USB probing is that devices come online whenever they
> feel like it; there is no way to wait for that.

Yes, that is a problem when trying to make bootable USB pen drives.

>> Can I load that module before loading the actual SCSI/SATA/PATA
>> driver?
>=20
> it's the loading of the driver that causes the wait. Not the act
> of having the driver loaded.
>=20
> so the way to wait for things to settle is to load the driver...
>=20
> ... I take it the answer to your question is "no". Yes you can load it
> earlier, but no it has no effect. You can however load/unload it
> multiple times.

I understand the logic now, works as expected on my machine. Many thanks =

for your quick help.


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