Hi,
I truly apologize for the late reply. Somehow I missed it.
2009/7/8 Greg KH <greg@xxxxxxxxx>:
> Why can't you just run a program that sets the baud rate to this speed
> on the device, before running the ERSP program?
Wouldn't that require access to the file pointer that is used by ERSP?
Can I do something like
FILE *fid = fopen ("/dev/ttyUSB0", "w");
set_baud_rate (fid);
fclose (fid);
ERSP_stuff_goes_here ();
? Will the baud rate still be used after the call to 'fclose'? It
should be noted that I do not have access to the internal data
structures used by ERSP (proprietary software is sooo annoying).
> If that doesn't work, yes such a change can be made to the driver for
> you, but as you have found out, the odds of it working properly on
> future kernel releases is quite slim.
Yeah, I know. This is suboptimal, but I only think we'll be using this
software for one or two years more (after which we should be able to
use a Free Software solution), so I can live with this.
I've tried messing a bit around with the code, trying to force a
specific baud rate, but I didn't succeed. Does anybody have any
pointers that could be of any help, i.e. which function would be the
right place to force the baud rate to a specific value, do I need to
do this before or after some function calls, etc. ? I really don't
know much about kernel hacking so even the most obvious pointers would
be helpful.
Søren
>
> thanks,
>
> greg k-h
>
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
