On Thu 2010-02-11 14:35:14, Bill Gatliff wrote:
> Pavel Machek wrote:
> >> +static void
> >> +gpio_pwm_work (struct work_struct *work)
> >> +{
> >> + struct gpio_pwm *gp = container_of(work, struct gpio_pwm, work);
> >> +
> >> + if (gp->active)
> >> + gpio_direction_output(gp->gpio, gp->polarity ? 1 : 0);
> >> + else
> >> + gpio_direction_output(gp->gpio, gp->polarity ? 0 : 1);
> >> +}
> >>
> >
> > ...polarity ^ active ?
> >
>
> ... except that if polarity and/or active are >1, I don't send the
> values 1 or 0 to gpio_direction_output. I don't know if the API is
> specifically intended to accept nonzero values that are greater than 1.
!polarity ^ !active ? :-).
Pavel
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