linux-kernel - Re: [spi-devel-general] [PATCH] trivial: some fixes in spi documentation

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Message-ID: <20091102121334.GA4696@pengutronix.de>
Date:	Mon, 2 Nov 2009 13:13:34 +0100
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Thadeu Lima de Souza Cascardo <cascardo@...oscopio.com>
Cc:	trivial@...nel.org,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Randy Dunlap <rdunlap@...otime.net>,
	spi-devel-general@...ts.sourceforge.net
Subject: Re: [spi-devel-general] [PATCH] trivial: some fixes in spi
	documentation

Hi,

the typo fixes look good, still...

On Fri, Oct 30, 2009 at 07:28:14PM -0200, Thadeu Lima de Souza Cascardo wrote:
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...oscopio.com>
> ---
>  Documentation/spi/spi-summary |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary
> index deab51d..607aa97 100644
> --- a/Documentation/spi/spi-summary
> +++ b/Documentation/spi/spi-summary
> @@ -121,7 +121,7 @@ active.  So the master must set the clock to inactive before selecting
>  a slave, and the slave can tell the chosen polarity by sampling the
>  clock level when its select line goes active.  That's why many devices
>  support for example both modes 0 and 3:  they don't care about polarity,
> -and alway clock data in/out on rising clock edges.
> +and always clock data in/out on rising clock edges.
>  
>  
>  How do these driver programming interfaces work?
> @@ -236,7 +236,7 @@ And SOC-specific utility code might look something like:
>  		struct mysoc_spi_data *pdata2;
>  
>  		pdata2 = kmalloc(sizeof *pdata2, GFP_KERNEL);
> -		*pdata2 = pdata;
> +		*pdata2 = *pdata;

... this looks correct, because a few lines above it is stated:

        static struct mysoc_spi_data __initdata pdata = { ... };

No pointer here. But yeah, pretty confusing for an example.

>  		...
>  		if (n == 2) {
>  			spi2->dev.platform_data = pdata2;
> @@ -427,8 +427,8 @@ any more such messages.
>      it, should only be used with small amounts of data where the
>      cost of an extra copy may be ignored.  It's designed to support
>      common RPC-style requests, such as writing an eight bit command
> -    and reading a sixteen bit response -- spi_w8r16() being one its
> -    wrappers, doing exactly that.
> +    and reading a sixteen bit response -- spi_w8r16() being one of
> +    its wrappers, doing exactly that.
>  
>  Some drivers may need to modify spi_device characteristics like the
>  transfer mode, wordsize, or clock rate.  This is done with spi_setup(),
> -- 
> 1.6.3.3
> 
> 
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Pengutronix e.K.                           | Wolfram Sang                |
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