From: Aaron Lu <aaron.lu@amd.com>
To: Alan Stern <stern@rowland.harvard.edu>,
"Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux pm mailing list <linux-pm@vger.kernel.org>,
linux scsi mailing list <linux-scsi@vger.kernel.org>,
linux ide mailing list <linux-ide@vger.kernel.org>,
Lin Ming <ming.m.lin@intel.com>
Subject: [RFC]pass pm related information from ata to scsi
Date: Mon, 14 May 2012 18:02:07 +0800 [thread overview]
Message-ID: <20120514100206.GA3006@localhost.amd.com> (raw)
Hi,
ATA ODD has a new feature called device attention, which means it can
notify sata host that it needs power when in powered off state.
In libata, we can set a flag(ATA_DFLAG_DA) to represent this when
identifying the ata device. And when we are going to create the scsi
device(in ata_scsi_scan_host by __scsi_add_device), I hope the scsi
driver(sr) knows that this ODD supports device attention in its probe
function(sr_probe).
I didn't find a proper way to do this, any suggestions?
Thanks.
next reply other threads:[~2012-05-14 10:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-14 10:02 Aaron Lu [this message]
2012-05-14 14:20 ` [RFC]pass pm related information from ata to scsi Alan Stern
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