Re: [spi-devel-general] [PATCH] trivial: some fixes in spidocumentation

From: Thadeu Lima de Souza Cascardo
Date: Mon Nov 02 2009 - 11:55:01 EST


On Mon, Nov 02, 2009 at 01:13:34PM +0100, Wolfram Sang wrote:
> 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@xxxxxxxxxxxxxx>
> > ---
> > 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.
>

Oh. Right. I may have thought that was an array or something. I will
resend without it or think of a more clear example (perhaps, get some
real but simple code).

> > ...
> > 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 |
> Industrial Linux Solutions | http://www.pengutronix.de/ |


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