How to specify offset into SPI device

[Thomas.Doerfler at embedded-brains.de (Thomas Doerfler)]

Robert,

Robert S. Grimes schrieb:
> Thomas Doerfler wrote:
>> I guess, that you do not (yet) advance the rwargs->bytes_moved element?
>> Without looking at the RTEMS I/O code, I guess that it learns from that
>> parameter, how far you have actually written to the file/device.
>>   
> Oh!  Fixed that now - thanks!
> 
> But is there no way to seek?

fseek should directly modify the corresponding data strucutre managed in 
the IO manager, so when you fseek and then write, the write position 
(offset) reflects the seek.

> 
>> Fee free to use it as is now :-)
>>   
> Okay, thanks,
> -Bob
> 
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