From: David Brownell <david-b@pacbell.net>
To: Bryan WU <bryan.wu@analog.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>,
spi-devel-general@lists.sourceforge.net,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [spi-devel-general] adding bits_per_word to struct spi_board_info to mirror struct spi_device
Date: Mon, 7 May 2007 22:00:26 -0700 [thread overview]
Message-ID: <200705072200.26888.david-b@pacbell.net> (raw)
In-Reply-To: <1178596106.5222.3.camel@roc-desktop>
On Monday 07 May 2007, Bryan WU wrote:
> currently, there are some duplicated data members in spi_device struct
> spi_board_info struct. This two structs are confused driver writers and
> boards driver users.
How would that confusion arise? Only arch/.../board-xxx.c writers
normally even see spi_board_info; the exception is that someone who
writes an add-on board -- maybe a USB-to-SPI adapter -- would call the
rarely used spi_new_device() routine.
Developers writing a SPI drivers -- controller drivers touching some
SOC's serial controller hardware, or "struct spi_driver" protocol code
talking to a chip through such a controller -- never see board info.
They only see "struct spi_device". So I don't see why they would have
a reason to be confused.
- Dave
next prev parent reply other threads:[~2007-05-08 5:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-25 10:05 adding bits_per_word to struct spi_board_info to mirror struct spi_device Mike Frysinger
2007-04-25 15:13 ` [spi-devel-general] " David Brownell
2007-05-07 23:47 ` Mike Frysinger
2007-05-08 3:48 ` Bryan WU
2007-05-08 5:00 ` David Brownell [this message]
2007-05-08 7:31 ` Bryan WU
2007-05-08 4:53 ` David Brownell
2007-05-08 5:24 ` Mike Frysinger
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