From: Robert Hancock <hancockrwd@gmail.com>
To: Peter Klotz <peter.klotz@aon.at>
Cc: linux-ide@vger.kernel.org
Subject: Re: Does ICH9M support eSATA Port Multiplier?
Date: Sat, 31 Oct 2009 11:02:29 -0600 [thread overview]
Message-ID: <4AEC6DA5.9090603@gmail.com> (raw)
In-Reply-To: <4AEB6458.20401@aon.at>
On 10/30/2009 04:10 PM, Peter Klotz wrote:
> Robert Hancock wrote:
>>> Can I enable it somehow maybe by using a module option?
>>
>> No module parameter for that, you'd have to hack the code in ahci.c to
>> force the option on. No guarantees it's going to work if the
>> controller doesn't report the capability, though.
>
> Could you please give me a hint what to change in ahci.c?
>
> I would like to try and see what happens.
Based on the version in Linus' git, you'd likely want to add to
ahci_save_initial_config something like:
cap |= HOST_CAP_PMP;
>
> Could such a hack damage the hardware?
Not likely. It's not impossible that data loss could result though,
better back up important files first..
next prev parent reply other threads:[~2009-10-31 17:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-29 19:36 Does ICH9M support eSATA Port Multiplier? Peter Klotz
2009-10-30 0:02 ` Robert Hancock
2009-10-30 22:10 ` Peter Klotz
2009-10-31 17:02 ` Robert Hancock [this message]
2009-11-01 20:34 ` Peter Klotz
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