From: Tejun Heo <htejun@gmail.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: alan@lxorguk.ukuu.org.uk, linux-ide@vger.kernel.org
Subject: Re: [PATCHSET] hotplug polling, take 5
Date: Wed, 01 Nov 2006 12:38:04 +0900 [thread overview]
Message-ID: <4548169C.9070305@gmail.com> (raw)
In-Reply-To: <454812EB.2050907@pobox.com>
Jeff Garzik wrote:
>> Link powersave patchset should handle that together but I'm still not
>> sure what to do w/ user interface (which sysfs node to use). Also,
>> controllers which are used on laptops && use hp-poll by default are
>> sata_nv (old ones) and some variant of sata_sil used in ati chipset.
>> So, it shouldn't cause trouble for most laptop users.
>
> I'm not saying it causes trouble. Just saying that polling unused ports
> is practically guaranteed to require more power than never doing so.
Yeap, no objection there.
> It shouldn't be hard to figure out where to poke stuff into sysfs...
I dunno. It's policy decision and we don't have ATA sysfs nodes yet.
So, where do we begin? Is it time to start /sys/class/ata_host/ataX tree?
Thanks.
--
tejun
prev parent reply other threads:[~2006-11-01 3:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-15 22:37 [PATCHSET] hotplug polling, take 5 Tejun Heo
2006-10-15 22:37 ` [PATCH 2/3] libata: add hp-poll support to controllers with hotplug interrutps Tejun Heo
2006-10-15 22:37 ` [PATCH 1/3] libata: implement hotplug by polling Tejun Heo
2006-10-15 22:37 ` [PATCH 3/3] libata: add hp-poll support to controllers without hotplug interrupts Tejun Heo
2006-11-01 2:07 ` [PATCHSET] hotplug polling, take 5 Jeff Garzik
2006-11-01 3:02 ` Tejun Heo
2006-11-01 3:22 ` Jeff Garzik
2006-11-01 3:38 ` Tejun Heo [this message]
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