[E3-hacking] [PATCH v2 1/6] SoC Camera: add driver for OMAP1 camera interface
Janusz Krzysztofik
jkrzyszt at tis.icnet.pl
Sun Sep 19 20:24:25 BST 2010
Sunday 19 September 2010 17:06:58 Ralph Corderoy wrote:
> Hi Janusz,
Hi Ralph,
Thanks for your time.
> > This is a V4L2 driver for TI OMAP1 SoC camera interface.
> >
> > + "0x%0x\n", __func__, it_status);
> > + "0x%0x\n", __func__, it_status);
> > + dev_warn(dev, "%s: format %#x not found\n", __func__,
> > + dev_warn(icd->dev.parent, "Format %#x not found\n",
>
> Two bytes could be saved with consistent use of %#x. :-)
My "man 3 printf" says:
"The flag characters
The character % is followed by zero or more of the following flags:
# The value should be converted to an "alternate form"... For x and
X conversions, a non-zero result has the string "0x" (or "0X" for X
conversions) prepended to it."
In the first two cases, I intended to keep the "0x" prepended even if 0. Am I
missing something?
> Does it make
> sense to say `%0x' without giving a field width to pad to?
My bad.
In next iteration, I'll probably use "0x%.8x" when printing 32-bit register
values. What do you think?
Cheers,
Janusz
> That's
> another two bytes saved. A veritable word!
>
> Cheers,
> Ralph.
>
>
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