From: Tejun Heo <htejun@gmail.com>
To: Fajun Chen <fajunchen@gmail.com>
Cc: "linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: Re: Recommendations on user-space soft/hardreset
Date: Sun, 22 Jul 2007 21:20:29 +0900 [thread overview]
Message-ID: <46A34B8D.3040407@gmail.com> (raw)
In-Reply-To: <8202f4270707200814ja0ba571oa38e25fc2f731a8d@mail.gmail.com>
Fajun Chen wrote:
> Yasha Okshtein wrote:
>> I need to send soft and/or hard resets from userspace.
>
>>> Actually, you can do it by requesting manual rescan of the SCSI host.
>>> "echo - - - > /sys/class/scsi_host/hostX/scan"
>
> I've been using this approach to spin up a PATA drive. However, I
> have not figured out a way to return user scan result from kernel.
> For instance, how can I tell if the scan failed at reset or Identify
> Device from user space?
Hmm... As it currently stands, you cannot.
--
tejun
next prev parent reply other threads:[~2007-07-22 12:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-20 15:14 Recommendations on user-space soft/hardreset Fajun Chen
2007-07-22 12:20 ` Tejun Heo [this message]
[not found] <6b01c6170707171723p4fdae403hf5b605fce4595b7@mail.gmail.com>
2007-07-18 0:34 ` Yasha Okshtein
2007-07-18 0:45 ` Alan Cox
2007-07-18 1:00 ` Yasha Okshtein
2007-07-18 1:18 ` Yasha Okshtein
2007-07-18 12:54 ` Alan Cox
2007-07-18 16:49 ` Yasha Okshtein
2007-07-18 3:35 ` Tejun Heo
2007-07-18 4:04 ` Yasha Okshtein
2007-07-18 4:15 ` Tejun Heo
2007-07-18 5:01 ` Yasha Okshtein
2007-07-18 5:08 ` Tejun Heo
2007-07-18 6:13 ` Yasha Okshtein
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