From: "Nobin Mathew" <nobin.mathew@gmail.com>
To: "Midhun Agnihotram" <agnimidhun@gmail.com>
Cc: linux-kernel@vger.kernel.org, "Pierre Ossman" <drzeus-mmc@drzeus.cx>
Subject: Re: platform_driver_register() ??
Date: Tue, 3 Jul 2007 18:28:40 +0530 [thread overview]
Message-ID: <8d6898730707030558o5e110b0v257ffc6350c76069@mail.gmail.com> (raw)
In-Reply-To: <4dde4acb0707030028p2c078a22jd537853f145c2518@mail.gmail.com>
Hi Midhun,
I think mmc driver is layered modules, only top block driver
registers driver under "mmc_bus_type" bus, see
drivers/mmc/mmc_sysfs.c and mmc_block.c. I think they are creating a
tree of devices of same characteristics under that bus.
I think your driver is linux/drivers/mmc/imxmmc.c where it registers a
driver for device of type "platform_bus_type". This module will come
under above mentioned block driver.
Corresponding platform device is registered in
linux/arch/arm/mach-imx/generic.c see platform_device imx_mmc_device.
Nobin Mathew
On 7/3/07, Midhun Agnihotram <agnimidhun@gmail.com> wrote:
> Hi All,
>
> I have an MMC driver for my kit (i.MX21 based cogent board
> CSB535FS), which is supplied by Cogent (Kernel version 2.6.16).
>
> The original driver (linux/drivers/mmc/mmc_block.c) uses
> mmc_register_driver() method to register the driver but the one
> supplied by Cogent uses platform_driver_register() method. What is the
> difference between the two?
>
>
> Thanks,
> Midhun.
> -
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next prev parent reply other threads:[~2007-07-03 12:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-03 7:28 Midhun Agnihotram
2007-07-03 12:58 ` Nobin Mathew [this message]
2007-07-03 19:15 ` Pierre Ossman
2007-07-05 9:21 ` Midhun Agnihotram
2007-07-08 12:23 ` Pierre Ossman
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