From: Oliver Neukum <oneukum@suse.de>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@suse.de>,
Greg KH <greg@kroah.com>,
Matthew Dharm <mdharm-usb@one-eyed-alien.net>,
SCSI development list <linux-scsi@vger.kernel.org>,
USB Storage list <usb-storage@lists.one-eyed-alien.net>
Subject: Re: [PATCH] usb-storage: implement autosuspend
Date: Mon, 2 Aug 2010 16:36:10 +0200 [thread overview]
Message-ID: <201008021636.10290.oneukum@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1007281702030.1744-100000@iolanthe.rowland.org>
Am Mittwoch, 28. Juli 2010, 23:12:39 schrieb Alan Stern:
>
> This patch (as1400) adds runtime-PM support to usb-storage. It
> utilizes the SCSI layer's runtime-PM implementation, so its scope is
> limited. Currently the only effect is that disk-like devices (such as
> card readers or flash drives) will be autosuspended if they aren't
> mounted and their device files aren't open. This would apply, for
> example, to card readers that don't contain a memory card.
So it will autosuspend devices that do contain a medium, which
is not mounted? This is a bit problematic, as some card readers
will report a medium change upon resumption?
How does user space deal with this?
Regards
Oliver
next prev parent reply other threads:[~2010-08-02 14:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-28 21:12 [PATCH] usb-storage: implement autosuspend Alan Stern
2010-07-28 21:16 ` James Bottomley
2010-07-28 21:25 ` Greg KH
2010-07-28 21:29 ` James Bottomley
2010-07-28 21:35 ` Greg KH
2010-07-28 22:56 ` James Bottomley
2010-07-28 23:09 ` Greg KH
2010-07-29 14:14 ` Alan Stern
2010-07-29 14:19 ` Greg KH
2010-08-02 14:36 ` Oliver Neukum [this message]
2010-08-02 15:07 ` Alan Stern
2010-08-02 23:47 ` patch "USB: usb-storage: implement autosuspend" added to gregkh-2.6 tree gregkh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201008021636.10290.oneukum@suse.de \
--to=oneukum@suse.de \
--cc=James.Bottomley@suse.de \
--cc=greg@kroah.com \
--cc=linux-scsi@vger.kernel.org \
--cc=mdharm-usb@one-eyed-alien.net \
--cc=stern@rowland.harvard.edu \
--cc=usb-storage@lists.one-eyed-alien.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox