Am Montag, 16. Januar 2012, 14:02:05 schrieb Hans Verkuil:
> > > +/* Set frequency (if non-0), PA, mute and turn on/off the FM
> > > transmitter. */ +static int keene_cmd_main(struct keene_device *radio,
> > > unsigned freq, bool play) +{
> > > + unsigned short freq_send = freq ? (freq - 76 * 16000) / 800 : 0;
> > > + int ret;
> > > +
> > > + radio->buffer[0] = 0x00;
> > > + radio->buffer[1] = 0x50;
> > > + radio->buffer[2] = (freq_send >> 8) & 0xff;
> > > + radio->buffer[3] = freq_send & 0xff;
> >
> > Please use the endianness macro appropriate here
>
> I don't see any endianness issues here, but perhaps I missed something.
You are doing the endianness conversion by hand. We have a nice macro
for that that assures that special swapping cpu instructions will be used.
Regards
Oliver
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