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* [PATCH] trivial: some fixes in spi documentation
@ 2009-10-30 21:28 Thadeu Lima de Souza Cascardo
  2009-11-02 12:13 ` [spi-devel-general] " Wolfram Sang
  0 siblings, 1 reply; 3+ messages in thread
From: Thadeu Lima de Souza Cascardo @ 2009-10-30 21:28 UTC (permalink / raw)
  To: trivial
  Cc: Thadeu Lima de Souza Cascardo, David Brownell, Randy Dunlap,
	spi-devel-general, linux-kernel, linux-doc

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.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;
 		...
 		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

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [spi-devel-general] [PATCH] trivial: some fixes in spi documentation
  2009-10-30 21:28 [PATCH] trivial: some fixes in spi documentation Thadeu Lima de Souza Cascardo
@ 2009-11-02 12:13 ` Wolfram Sang
  2009-11-02 16:54   ` Thadeu Lima de Souza Cascardo
  0 siblings, 1 reply; 3+ messages in thread
From: Wolfram Sang @ 2009-11-02 12:13 UTC (permalink / raw)
  To: Thadeu Lima de Souza Cascardo
  Cc: trivial, David Brownell, linux-doc, linux-kernel, Randy Dunlap,
	spi-devel-general

[-- Attachment #1: Type: text/plain, Size: 2919 bytes --]

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@holoscopio.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
> 
> 
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay 
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> _______________________________________________
> spi-devel-general mailing list
> spi-devel-general@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/spi-devel-general

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [spi-devel-general] [PATCH] trivial: some fixes in spi documentation
  2009-11-02 12:13 ` [spi-devel-general] " Wolfram Sang
@ 2009-11-02 16:54   ` Thadeu Lima de Souza Cascardo
  0 siblings, 0 replies; 3+ messages in thread
From: Thadeu Lima de Souza Cascardo @ 2009-11-02 16:54 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: trivial, David Brownell, linux-doc, linux-kernel, Randy Dunlap,
	spi-devel-general

[-- Attachment #1: Type: text/plain, Size: 3291 bytes --]

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@holoscopio.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.
> 

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
> > 
> > 
> > ------------------------------------------------------------------------------
> > Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> > is the only developer event you need to attend this year. Jumpstart your
> > developing skills, take BlackBerry mobile applications to market and stay 
> > ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> > http://p.sf.net/sfu/devconference
> > _______________________________________________
> > spi-devel-general mailing list
> > spi-devel-general@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/spi-devel-general
> 
> -- 
> Pengutronix e.K.                           | Wolfram Sang                |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |



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2009-10-30 21:28 [PATCH] trivial: some fixes in spi documentation Thadeu Lima de Souza Cascardo
2009-11-02 12:13 ` [spi-devel-general] " Wolfram Sang
2009-11-02 16:54   ` Thadeu Lima de Souza Cascardo

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