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

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Message-Id: <a2fc3b0b25c4ad798b63b03763256a2f@kernel.crashing.org>
Date:	Wed, 28 Feb 2007 23:08:23 +0100
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Dan Malek <dan@...eddedalley.com>
Cc:	Kumar Gala <galak@...nel.crashing.org>,
	linux-ppc-embedded <linuxppc-embedded@...abs.org>,
	Timur Tabi <timur@...escale.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Torben.Mathiasen@...com
Subject: Re: lanana: Add major/minor entries for PPC QE UART devices

> Please, let's just leave the four we have

No one is suggesting otherwise.

> and let
> the driver just allocate increasing minor numbers.
> If anyone has a product with more than 4 UARTs,
> they will have to figure out what to do with the
> additional minors.

Since you say no one has ever used more than 4 UARTs,
there are two options:

- Cap the driver at 4 UARTs;
- Assign an extra range of minors for more ports.

Just randomly using some extra minors that aren't
assigned to you isn't such a great idea.


Segher

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