linux-kernel - Re: libsata doesn't like bus without master

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Message-ID: <45D1E1B3.3050109@rtr.ca>
Date:	Tue, 13 Feb 2007 11:05:07 -0500
From:	Mark Lord <lkml@....ca>
To:	Robert Hancock <hancockr@...w.ca>
Cc:	Patrick Ale <patrick.ale@...il.com>, linux-kernel@...r.kernel.org,
	Tejun Heo <htejun@...il.com>
Subject: Re: libsata doesn't like bus without master

Robert Hancock wrote:
>>
> Having a single drive on the channel configured as slave is not really a 
> legal configuration.

Sure it is.  Not ideal, but "legal" in every respect,
and suprisingly common "in the wild" since the early 1990s.

> (I believe the ATA standards say that it's 
> something that a host controller/driver/OS is allowed to support, but it 
> is not required to.)

Exactly.  Perfectly legal, in other words.  If it's not working with libata,
then we need to fix libata.

Cheers
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