linux-kernel - Re: commit 7e92b4fc34 - x86, serial: convert legacy COM ports to platform devices

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Date:	Tue, 24 Jul 2007 23:06:26 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
Cc:	Jeff Garzik <jeff@...zik.org>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Sébastien Dugué <sebastien.dugue@...l.net>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: commit 7e92b4fc34 - x86, serial: convert legacy COM ports to
 platform devices - broke my serial console

>   - use setserial to make the serial driver forget about ttyS2
>     so an IR driver could claim it, or
> 
>   - use setserial to change the IRQ to 3 and just use the device
>     in SIR mode, which is 16550-compatible so you can use the
>     serial driver
> 
> I didn't express that very clearly in the changelog.

So the actual problem is quite different. Your IR driver for the port
should have an interface to tell the serial layer to make it unavailable.
End of problem and you can then use either service without setserial magic

Alan
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