linux-kernel - Re: [00/22] Cyclades PC300 driver: summary of patch series

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Message-ID: <m3d39z3cht.fsf@intrepid.localdomain>
Date:	Tue, 31 Jan 2012 20:20:30 +0100
From:	Krzysztof Halasa <khc@...waw.pl>
To:	Andrea Shepard <andrea@...sephoneslair.org>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	davem@...emloft.net, mmarek@...e.cz, jkosina@...e.cz,
	joe@...ches.com, justinmattock@...il.com, gregkh@...e.de,
	alan@...ux.intel.com, jdmason@...zu.us
Subject: Re: [00/22] Cyclades PC300 driver: summary of patch series

Andrea Shepard <andrea@...sephoneslair.org> writes:

> The Cyclades PC-300 is a line of PCI synchronous serial cards, which was
> produced in single and dual port models with either T1/E1 or V.35 ports.
> It used a Hitachi HD64572 (SCA-II) synchronous serial chip, and in the
> T1/E1 models an Infineon FALC-LH line interface/framing chip.  Copies
> of the hardware documentation may be found at [1].

BTW the V.35/V.24/X.21 version (i.e. non-T1/E1) are supported by the
pc300too.c driver. Or at least they're supposed to, I admit I haven't
used this kind of hw for several years (but can still test and fix, when
time permits).

Perhaps, just perhaps, merging T1/E1 support into pc300too.c would be
a better idea than dealing with Cyclades' old code.

The pc300too shares common SCA-II code with a driver for another hw,
pci200syn. I think it's been verified to work on non-x86-32 systems.

Esp. given this:

>  * Patches 01 through 16 merge in version 4.1.0, and fix build, portability
>    and style problems.  As of patch 16, the driver will build cleanly and
>    will detect hardware, but not operate reliably.
-- 
Krzysztof Halasa
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