netdev - [PATCH net-next-2.6 0/2] can: add driver for Softing card

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Message-ID: <20101223093627.GA325@e-circ.dyndns.org>
Date:	Thu, 23 Dec 2010 10:36:28 +0100
From:	Kurt Van Dijck <kurt.van.dijck@....be>
To:	netdev@...r.kernel.org, socketcan-core@...ts.berlios.de
Subject: [PATCH net-next-2.6 0/2] can: add driver for Softing card

This series will add a driver for Softing PCMCIA CAN card.

This core CAN networking code exists for a few years in the
socketCAN repository.
The updates since the latest socketCAN version:
* PCMCIA interfacing changed
* seperation between the two drivers via a platform:softing device
* added conditional bus-error reporting

About the platform_device ...
Softing Gmbh has PCMCIA & PCI cards. Both share the same
Dual Port RAM (DPRAM) interface. Therefore, the driver is split in 2 stages:

[1/2] softing.ko: Generic platform bus device driver
It expects a platform:softing device with an IO range that contains
the DPRAM, and an IRQ line.

[2/2] softing_cs.ko: PCMCIA driver
This driver will create a platform:softing device on top of the
pcmcia device.

The 2 driver are not linked in a way that softing.ko depends
on softing_cs.ko or vice versa. The reason for doing so is that
the DPRAM interface takes quite some code, and building it directly
on the PCMCIA or PCI device was difficult to follow.
The present design eliminates the need for exotic sysfs API's since
all sysfs attributes know they are attached to a platform_device.

Kurt
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