modbus team mailing list archive

[Alex Stapleton <alexs@xxxxxxxxxxxxx>]

On 12/07/2011 01:30, Justin Findlay wrote:
> On Mon, Jul 11, 2011 at 5:33 PM, Justin Findlay<jfindlay@xxxxxxxxx>  wrote:
> > I'm trying to compile libmodbus-2.9.4 on an ARM system
> > (http://www.embeddedarm.com/products/board-detail.php?product=TS-7260),
> > but I'm getting an error:
>
> > I've not used C in a very long time, but this seems to be a simple
> > syntax problem.  (Perhaps a compatibility issue between different C
> > standards?)  I'll keep trying to figure it out myself, but I would
> > appreciate some help.  Thanks.
>
> It appears that neither linux/serial.h nor any other similar files
> define serial_rs485 on my debian etch arm system.

I am using Debian Squeeze and linux/serial.h defines SER_RS485_ENABLED 
as does the armel cross-compile variant.

The emdebian cross compile headers appear to be bugged though. I have to 
manuually #include <asm-generic/ioctls.h>
to get the required TIOC... #define.

It would seem that the RS485 code that's been put into libmodbus could 
use some ifdefs for better platform compatibility.