linux-kernel - Re: [PATCH can-next v3 1/2] can: add tx/rx LED trigger support

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Date:	Tue, 31 Jul 2012 14:14:52 +0200
From:	Fabio Baltieri <fabio.baltieri@...il.com>
To:	Wolfgang Grandegger <wg@...ndegger.com>
Cc:	linux-can@...r.kernel.org, linux-kernel@...r.kernel.org,
	Oliver Hartkopp <socketcan@...tkopp.net>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: Re: [PATCH can-next v3 1/2] can: add tx/rx LED trigger support

On Tue, Jul 31, 2012 at 10:46:57AM +0200, Wolfgang Grandegger wrote:
> Hi Fabio,
> 
> On 07/30/2012 09:20 PM, Fabio Baltieri wrote:
> > This patch implements the functions to add two LED triggers, named
> > <ifname>-tx and <ifname>-rx, to a canbus device driver.
> > 
> > Triggers are called from specific handlers by each CAN device driver and
> > can be disabled altogether with a Kconfig option.
> > 
> > The implementation keeps the LED on when the interface is UP and blinks
> > the LED on network activity at a configurable rate.
> > 
> > This only supports can-dev based drivers, as it uses some support field
> > in the can_priv structure.
> > 
> > Supported drivers should call can_led_init(), can_led_exit() and
> > can_led_event() as needed.
> > 
> > Supported events are:
> > - CAN_LED_EVENT_OPEN: turn on tx/rx LEDs
> > - CAN_LED_EVENT_STOP: turn off tx/rx LEDs
> > - CAN_LED_EVENT_TX: trigger tx LED blink
> > - CAN_LED_EVENT_RX: trigger tx LED blink
> > 
> > Cc: Oliver Hartkopp <socketcan@...tkopp.net>
> > Cc: Wolfgang Grandegger <wg@...ndegger.com>
> > Cc: Marc Kleine-Budde <mkl@...gutronix.de>
> > Signed-off-by: Fabio Baltieri <fabio.baltieri@...il.com>
> > ---
> > 
> > Hi all!
> > 
> > This is the v3 of my CAN LED trigger patch.  It's a major refactoring of the v2
> > that was discussed about three months ago concluding with the idea that
> > implementing the oneshot triggering code in the LED framework would be a better
> > solution.
> > 
> > This is the old thread for reference:
> > http://marc.info/?l=linux-can&m=133521499002898&w=2
> > 
> > So, generic oneshot trigger code is now merged in mainline (see 5bb629c), and
> > these are the changes in the v3:
> 
> Nice, thanks for your patience (and not giving up).

Thanks to you for the review... no intention of giving up, I'm learning
a lot from this! ;-)

Fabio
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