From: john@jjdev.com (John de la Garza)
To: kernelnewbies@lists.kernelnewbies.org
Subject: kobject sample code
Date: Sat, 13 Dec 2014 13:01:05 -0500 [thread overview]
Message-ID: <20141213180104.GA2872@vega.jjdev.com> (raw)
In-Reply-To: <1418117163.2058.81.camel@x220>
On Tue, Dec 09, 2014 at 10:26:03AM +0100, Paul Bolle wrote:
> On Mon, 2014-12-08 at 21:20 -0500, John de la Garza wrote:
> > I'm looking at samples/kobject/kobject-example.c
> >
> > at line 39 foo is read:
> >
> > sscanf(buf, "%du", &foo);
> >
> > foo is an int so why is it read using %du not %d?
>
> My reading of lib/vsprintf.c:vsscanf() is that a "%du" format expects
> "buf" to contain an integer followed by a literal 'u' char. Is that your
> reading too?
>
After reading the code and the man page for vsscanf, it seems like
it is not expecting the 'u', but rather ignores it.
vsscanf is a bit complicated for me, so I may be missing something.
next prev parent reply other threads:[~2014-12-13 18:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-09 2:20 kobject sample code John de la Garza
2014-12-09 9:26 ` Paul Bolle
2014-12-13 18:01 ` John de la Garza [this message]
2014-12-17 21:31 ` Paul Bolle
2014-12-17 23:35 ` Rastislav Barlik
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