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From: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
To: jeff@garzik.org
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-ide@vger.kernel.org, htejun@gmail.com,
	akpm@linux-foundation.org
Subject: [patch 0/7] Asynchronous Notification for ATAPI devices (v2) - resend
Date: Fri, 4 May 2007 11:12:22 -0700	[thread overview]
Message-ID: <20070504111222.c2e373cf.kristen.c.accardi@intel.com> (raw)

This patch series implements Asynchronous Notification (AN) for SATA
ATAPI devices as defined in SATA 2.5 and AHCI 1.1 and higher.  Drives
which support this feature will send a notification when new media is
inserted and removed, preventing the need for user space to poll for
new media.  This support is exposed to user space via a flag that will
be set in /sys/block/sr*/capability_flags.  If the flag is set, user
space can disable polling for the new media, and the genhd driver will
send a KOBJ_CHANGE event with the envp set to MEDIA_CHANGE_EVENT=1.

Note that this patch only implements support for directly attached
drives - AN with drives attached to a port multiplier requires 
additional changes.

Thanks!
Kristen

-- 
-- 

             reply	other threads:[~2007-05-04 18:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-04 18:12 Kristen Carlson Accardi [this message]
2007-05-04 20:30 ` James Bottomley
2007-05-04 20:36   ` Kristen Carlson Accardi
2007-05-06 10:15 ` Tejun Heo
2007-05-07 15:20   ` Kristen Carlson Accardi

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