linux-kernel - Re: lanana: Add major/minor entries for PPC QE UART devices

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Message-Id: <0A729FA4-5C52-4CF2-A305-7B7E4CCF9D55@kernel.crashing.org>
Date:	Wed, 28 Feb 2007 08:32:39 -0600
From:	Kumar Gala <galak@...nel.crashing.org>
To:	"Mathiasen, Torben" <Torben.Mathiasen@...com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"Timur Tabi" <timur@...escale.com>, <linux-kernel@...r.kernel.org>
Subject: Re: lanana: Add major/minor entries for PPC QE UART devices


On Feb 28, 2007, at 7:14 AM, Mathiasen, Torben wrote:

>> Mathiasen, Torben wrote:
>>>
>>> Got around looking at this one. I'm fine with this approach, but the
>>> CPM5 fix looks wrong. Shouldn't it be:
>>>
>>> 49 = /dev/ttyCPM3		PPC CPM (SCC or SMC) - port 3
>>>
>>> instead?
>>>
>>
>> Well, how many CPM devices can exist?  If there are really 6 ports
>> possible, they need minors up to 51.
>>
>> Also, if QE really is just CPM v3, and they share the same minors,  
>> why
>> change the name?
>>
>
> Assuming QE has 4 entries, I would expect CPM to be the same. But we
> need verification of that. If it needs 6, we are in more trouble.

I think it really is 6 for the current CPM, and I don't see why we  
its not 8 for QE, Timur?

- k
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