From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Johannes Stezenbach <js@sig21.net>
Cc: "Tim Bird" <tim.bird@am.sony.com>,
"Josh Boyer" <jwboyer@gmail.com>, "Jörn Engel" <joern@logfs.org>,
linux-embedded <linux-embedded@vger.kernel.org>,
"linux kernel" <linux-kernel@vger.kernel.org>
Subject: Re: Recommendation for activating a deferred module init in the kernel
Date: Wed, 18 Jun 2008 02:10:42 +0200 [thread overview]
Message-ID: <48585282.4020508@s5r6.in-berlin.de> (raw)
In-Reply-To: <20080618000306.GA25466@linuxtv.org>
Johannes Stezenbach wrote:
> I think the USB bus enumeration can take significant time:
> recognize a device is connected, turn on bus power, try
> to read descriptors (bus powered devices might be slow to
> respond after power up). And this will happen even with
> drivers_autoprobe == 0, right?
Probably... I don't know which particular steps happen in the USB core
before upper layer drivers are bound. Not binding the [eou]hci-hcd PCI
driver would certainly be more effective.
--
Stefan Richter
-=====-==--- -==- =--=-
http://arcgraph.de/sr/
next prev parent reply other threads:[~2008-06-18 0:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <48580116.9070504@am.sony.com>
[not found] ` <20080617190750.GA31224@logfs.org>
2008-06-17 19:52 ` Recommendation for activating a deferred module init in the kernel Tim Bird
2008-06-17 19:55 ` Tim Bird
2008-06-17 20:23 ` Jörn Engel
2008-06-17 20:35 ` Josh Boyer
2008-06-17 22:48 ` Stefan Richter
2008-06-18 0:03 ` Johannes Stezenbach
2008-06-18 0:10 ` Stefan Richter [this message]
2008-06-18 9:38 ` Johannes Stezenbach
2008-06-17 20:19 ` Jörn Engel
[not found] ` <20080617192248.GH11921@sovereign.org>
2008-06-17 20:06 ` Tim Bird
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