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Re: [PATCH] fujitsu-laptop: Support radio LED

From Pavel Machek <pavel@ucw.cz>
Newsgroups linux.kernel
Subject Re: [PATCH] fujitsu-laptop: Support radio LED
Date 2016-04-10 20:30 +0200
Message-ID <rmshs-In-11@gated-at.bofh.it> (permalink)
References <rdhOi-8i5-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi!

> Sadly, this implementation is unsuitable for use with "heavy" LED
> triggers, like phy0rx.  Once blinking frequency achieves a certain
> level, the system hangs.  I'm not sure how much of an issue this is as
> I'm pretty sure other LEDs registered by fujitsu-laptop would also cause
> a hang when assigned to a similar trigger as they are also controlled
> using ACPI.

Something to do with triggers working in interrupt context?

Cc led people?

> +
> +static enum led_brightness radio_led_get(struct led_classdev *cdev);
> +static void radio_led_set(struct led_classdev *cdev,
> +			       enum led_brightness brightness);
> +
> +static struct led_classdev radio_led = {
> + .name = "fujitsu::radio_led",
> + .brightness_get = radio_led_get,
> + .brightness_set = radio_led_set
> +};

Is the naming consistent with other drivers?

Should there be default trigger so that it works out of the box?

Best regards,
									Pavel

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Thread

Re: [PATCH] fujitsu-laptop: Support radio LED Pavel Machek <pavel@ucw.cz> - 2016-04-10 20:30 +0200
  Re: [PATCH] fujitsu-laptop: Support radio LED Michał Kępień <kernel@kempniu.pl> - 2016-04-12 14:30 +0200
    Re: [PATCH] fujitsu-laptop: Support radio LED Pavel Machek <pavel@ucw.cz> - 2016-04-14 14:50 +0200

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