From mboxrd@z Thu Jan  1 00:00:00 1970
From: ben.dooks@codethink.co.uk (Ben Dooks)
Date: Fri, 10 May 2013 16:45:15 +0200
Subject: [RFC 1/8] serial:st-asc: Add ST ASC driver.
In-Reply-To: <20130508153459.GA17186@kroah.com>
References: <1368022187-1633-1-git-send-email-srinivas.kandagatla@st.com>
 <1368022248-2153-1-git-send-email-srinivas.kandagatla@st.com>
 <201305081634.43498.arnd@arndb.de> <20130508153459.GA17186@kroah.com>
Message-ID: <518D07FB.7010606@codethink.co.uk>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 08/05/13 17:34, Greg KH wrote:
> On Wed, May 08, 2013 at 04:34:43PM +0200, Arnd Bergmann wrote:
>>> +#define ASC_MAJOR		204
>>> +#define ASC_MINOR_START		40
>>
>> I don't know what the current policy is on allocating major/minor numbers,
>> but I'm sure you cannot just reuse one that is already used.
>
> I agree, why are you trying to create a new tty device name?  Can't you
> use the existing ttyS name and minor number as you will not have any
> other type of serial device on this system?

This would be an issue on systems that either accept plug-in cards
such as PCMCIA/CardBus/PCI or have additional off SoC IO spaces
where 8250 compatible UARTS could live.

-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius