* trivial question regarding byte ordering
@ 2007-02-23 15:18 Allexio Ju
2007-02-23 15:23 ` Robert P. J. Day
2007-02-23 15:24 ` Frederik Deweerdt
0 siblings, 2 replies; 5+ messages in thread
From: Allexio Ju @ 2007-02-23 15:18 UTC (permalink / raw)
To: linux-kernel
Hi,
Is there a API (or macro) that checks CPU endianness and does byte
ordering conversion on given data (32-bit) if endianness is
big-endian?
Thank you in advance for your comment.
Regards,
Allexio
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: trivial question regarding byte ordering
2007-02-23 15:18 trivial question regarding byte ordering Allexio Ju
@ 2007-02-23 15:23 ` Robert P. J. Day
2007-02-23 18:00 ` Allexio Ju
2007-02-23 15:24 ` Frederik Deweerdt
1 sibling, 1 reply; 5+ messages in thread
From: Robert P. J. Day @ 2007-02-23 15:23 UTC (permalink / raw)
To: Allexio Ju; +Cc: linux-kernel
On Fri, 23 Feb 2007, Allexio Ju wrote:
> Hi,
>
> Is there a API (or macro) that checks CPU endianness and does byte
> ordering conversion on given data (32-bit) if endianness is
> big-endian?
#include <asm/byteorder.h>
each architecture is responsible for including the appropriate header
file for either big or little endianness.
rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA
http://fsdev.net/wiki/index.php?title=Main_Page
========================================================================
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: trivial question regarding byte ordering
2007-02-23 15:18 trivial question regarding byte ordering Allexio Ju
2007-02-23 15:23 ` Robert P. J. Day
@ 2007-02-23 15:24 ` Frederik Deweerdt
2007-02-23 18:01 ` Allexio Ju
1 sibling, 1 reply; 5+ messages in thread
From: Frederik Deweerdt @ 2007-02-23 15:24 UTC (permalink / raw)
To: Allexio Ju; +Cc: linux-kernel
On Fri, Feb 23, 2007 at 07:18:13AM -0800, Allexio Ju wrote:
> Is there a API (or macro) that checks CPU endianness and does byte
> ordering conversion on given data (32-bit) if endianness is
> big-endian?
including include/asm/byteorder.h will define the needed
cpu_to_{b,l}e{16,32,64} and {b,l}e{16,32,64}_to_cpu macros.
Regards,
Frederik
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: trivial question regarding byte ordering
2007-02-23 15:24 ` Frederik Deweerdt
@ 2007-02-23 18:01 ` Allexio Ju
0 siblings, 0 replies; 5+ messages in thread
From: Allexio Ju @ 2007-02-23 18:01 UTC (permalink / raw)
To: Frederik Deweerdt; +Cc: linux-kernel
On 2/23/07, Frederik Deweerdt <deweerdt@free.fr> wrote:
> including include/asm/byteorder.h will define the needed
> cpu_to_{b,l}e{16,32,64} and {b,l}e{16,32,64}_to_cpu macros.
Great, Thank you for your answer.
Regards,
Allexio
^ permalink raw reply [flat|nested] 5+ messages in thread
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2007-02-23 15:18 trivial question regarding byte ordering Allexio Ju
2007-02-23 15:23 ` Robert P. J. Day
2007-02-23 18:00 ` Allexio Ju
2007-02-23 15:24 ` Frederik Deweerdt
2007-02-23 18:01 ` Allexio Ju
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