From: Ben Nizette <ben.nizette@iinet.net.au>
To: NZG <ngustavson@emacinc.com>
Cc: Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: passing function pointers through platform devices?
Date: Wed, 07 Mar 2007 14:53:31 +1100 [thread overview]
Message-ID: <45EE373B.80606@iinet.net.au> (raw)
In-Reply-To: <200703061246.29615.ngustavson@emacinc.com>
NZG wrote:
> I'm developing an SPI- bus >MMC/SD block driver translation layer.
> As part of this layer the write protect and card detect lines need to be read.
> The method for determining the state of these lines will be board specific.
>
> Is it appropriate to pass a function pointer through a platform device
> (declared in the mach initialization) to implement card_available and
> write_protect function calls?
> Or is there a cleaner way to do it?
Once the generic GPIO framework migrates upstream from -mm you should
just pass the GPIO token from board-specific code and gpio_get_value() it.
--Ben.
next prev parent reply other threads:[~2007-03-07 3:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 18:46 passing function pointers through platform devices? NZG
2007-03-07 3:53 ` Ben Nizette [this message]
2007-03-07 16:37 ` NZG
2007-03-07 17:07 ` Randy Dunlap
2007-03-07 17:36 ` NZG
2007-03-08 18:41 ` Haavard Skinnemoen
2007-03-08 18:57 ` NZG
2007-03-07 17:11 ` Paul Sokolovsky
-- strict thread matches above, loose matches on Subject: below --
2007-03-07 17:55 David Brownell
2007-03-09 16:31 ` NZG
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