Re: [i2c-tools PATCH v2] i2ctransfer: add new tool

From: Wolfram Sang
Date: Mon Mar 13 2017 - 08:29:14 EST



> > > > +.RI [ data ]
> > > > +.RI [ desc
> > > > +.RI [ data ]]
> > >
> > > You could join the previous two lines.
> >
> > Try it. You will miss some spaces, then.
>
> It works fine with quoting:
>
> .RI [ "desc " [ data "]] ..."
>
> . But ok, it's at least arguable if this is better than your solution.

I prefer my solution ;)

> > I wonder: will another I2C master start a transfer on a repeated start?
> > Need to investigate.
>
> I'd say it must not. It should have logic to detect bus busy and delay
> any transfers until the bus becomes idle. With a repeated start the bus
> doesn't become idle between two transfers.

I totally agree. However, I think I'll try to stress-test a little when
I use my scope next time. Just to have some real world experiences...

> ah, ok. BTW, I like tools that clean up after themselves. This way
> debugging is much easier if you look for lost memory. And yes, this
> doesn't matter much for short-living programs like i2c-tools, but I like
> being consistent here and also do the cleanup for this this type of
> program.

I see this point. And I see that the program became quite more complex
which makes future modifications more error prone. Your exit path
consolidation suggestion was a good example for that. But anayway, the
cleanup is there now, hope you'll all be happy :)

Attachment: signature.asc
Description: PGP signature