From: Darrick J. Wong <djwong@us.ibm.com>
Date: Thu, 11 Jan 2007 22:14:57 +0000 (-0800)
Subject: [SCSI] libsas: Add a sysfs knob to enable/disable a phy
X-Git-Tag: v2.6.21-rc1~274^2~230^2~84
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=acbf167d4ad8c27f9743a4b539d51ae9535bf21c;p=pandora-kernel.git

[SCSI] libsas: Add a sysfs knob to enable/disable a phy

This patch lets a user arbitrarily enable or disable a phy via sysfs.
Potential applications include shutting down a phy to replace one
lane of wide port, and (more importantly) providing a method for the
libata SATL to control the phy.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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