help with serial i/o from a device?

[Dave Stevens]

On Thu, 06 Sep 2018 09:53:24 +0200
Oliver Grawert <ogra at ubuntu.com> wrote:

> hi
> Am Mittwoch, den 05.09.2018, 23:30 -0400 schrieb Robert Heller:
> ...
> > cat /dev/ttyUSB0 > outfile.bin  
> ...
> 
> beyond roberts exccellent explanation, you can also use dd for byte
> streams, that gives you a bit more control than cat (allowing to set
> blocksize, legth or offset of what you want to capture)
> 
> sudo dd if=/dev/ttyUSB0 of=outfile.bin
> 
> (there you can for example use bs=1MB count=1 to capture exactly 1MB
> of data ... or skip=1kB to cut off the first kilobyte (i.e. a header,
> in case you only want the payload data) of the stream)
> 
> "man dd" has all the dirty details :)
> 
> ciao
> 	oli

fabulous, thanks both for this. I'll post when I've got it sorted, dd
sound great.

d


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