linux-kernel - Re: [PATCH v2] HID: add ThingM blink(1) USB RGB LED support

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Message-ID: <1270977623.602972.1358796715392.JavaMail.root@mail.savoirfairelinux.com>
Date:	Mon, 21 Jan 2013 14:31:55 -0500 (EST)
From:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:	simon@...gewell.org
Cc:	linux-input@...r.kernel.org, Jiri Kosina <jkosina@...e.cz>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] HID: add ThingM blink(1) USB RGB LED support

Hi Simon,

> > +++ b/Documentation/ABI/testing/sysfs-driver-hid-blink1
> > @@ -0,0 +1,23 @@
> > +What:		/sys/class/leds/blink(1)::<serial>/rgb
> > +Date:		January 2013
> > +Contact:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
> > +Description:	The ThingM blink(1) is an USB RGB LED. The color
> > notation is
> > +		3-byte hexadecimal. Read this attribute to get the last set
> > +		color. Write the 24-bit hexadecimal color to change the current
> > +		LED color. The default color is full white (0xFFFFFF).
> > +		For instance, set the color to green with: echo 00FF00 > rgb
> > +
> 
> Shouldn't the name presented in the sys/class/leds directories change
> appropriately too?

The directory name for the device under /sys/class/leds is "blink(1)::<serial>",
where <serial> is the last 4 digits of the device serial number (the first 4
digits are always the same: "1A00"). For instance, "blink(1)::1234".
Let me know if I misunderstood your question.

Thanks,
Vivien
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