From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Subject: Re: Support for Perle Systems Speed/LE-8
Date: Tue, 24 Jan 2012 09:11:41 -0800
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References: <4F1E4D69.3040907@redfish-solutions.com>
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To: Philip Prindeville <philipp@redfish-solutions.com>
Cc: linux-serial@vger.kernel.org

On Mon, Jan 23, 2012 at 11:19:21PM -0700, Philip Prindeville wrote:
> Hi.
> 
> I have a Perle Speed/LE-8 card that's poorly supported (cough) by the vendor.
> 
> The design seems to be plain-vanilla enough: it uses Oxford 9501 and 9511 chips.
> 
> $ lspci -v -n -s 04:07
> 04:07.0 0700: 155f:b008 (prog-if 06 [16950])
> 	Subsystem: 1415:9501
> 	Flags: medium devsel, IRQ 21
> 	I/O ports at ec00 [size=32]
> 	Memory at fbfff000 (32-bit, non-prefetchable) [size=4K]
> 	I/O ports at e880 [size=32]
> 	Memory at fbffe000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: [40] Power Management version 1
> 	Kernel driver in use: perle-serial
> 	Kernel modules: perle-serial
> 
> 04:07.1 0680: 155f:b008
> 	Subsystem: 1415:9511
> 	Flags: medium devsel, IRQ 21
> 	I/O ports at e800 [size=32]
> 	Memory at fbffd000 (32-bit, non-prefetchable) [size=4K]
> 	I/O ports at e480 [size=32]
> 	Memory at fbffc000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: [40] Power Management version 1
> 	Kernel driver in use: perle-serial
> 	Kernel modules: perle-serial
> 
> 
> $
> 
> There's nothing funky about this card except that one of the lines is
> either DTR or RTS if I've understood the scarce documentation.
> 
> Anyway, I was wondering what's involved in getting the
> drivers/tty/serial/8250_pci.c to support this?

Have you tried adding the pci device ids to the driver and see how well
it works, or not?

greg k-h