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SubjectRe: [PWM PATCH 2/5] Emulates PWM hardware using a high-resolution timer and a GPIO pin

> +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 ?

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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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