Re: [PATCH 2/2] i2c: Add message transfer tracepoints for SMBUS
From: David Howells
Date: Thu Feb 27 2014 - 08:20:30 EST
Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote:
> Although SMBus has no 10-bit addresses, we probably should also use %03x
> there for consistency reasons?
Done.
> Also, the I2C tracing has first 'f' then 'a', that should be consistent,
> too.
Flags first or address first? Do you have a preference (for both)?
> 'flags' should be %04x again
Done.
> and I'd prefer %*ph (or %*phD) for the buffer.
Again, I'm not so certain.
> Can we have something like this for 'flags'?
There's a __print_flags() which should work. One thing I'm concerned about
there is how do we handle more flags being added - does that count as an ABI
break if the printed format changes?
SMBus flags are basically the same as I2C flags, right?
David
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