linux-kernel - Re: [PATCH 23/27] HID: wacom: leds: use the ledclass instead of custom made sysfs files

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Message-ID: <20160712014202.GA25180@jelly.local>
Date:	Tue, 12 Jul 2016 11:42:02 +1000
From:	Peter Hutterer <peter.hutterer@...-t.net>
To:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:	Jiri Kosina <jikos@...nel.org>, Ping Cheng <pinglinux@...il.com>,
	Jason Gerecke <killertofu@...il.com>,
	Aaron Skomra <skomra@...il.com>, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org
Subject: Re: [PATCH 23/27] HID: wacom: leds: use the ledclass instead of
 custom made sysfs files

On Tue, Jul 05, 2016 at 04:39:19PM +0200, Benjamin Tissoires wrote:
> The now obsolete sysfs files for LEDs and EKRemote are kept for backward
> compatibility.
> Both the EKR (read-only) and the regular Cintiqs and Intuos are now
> sharing the same led API.
> 
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> ---
>  Documentation/ABI/testing/sysfs-driver-wacom |   5 +
>  drivers/hid/wacom.h                          |  19 +++
>  drivers/hid/wacom_sys.c                      | 191 +++++++++++++++++++++++++--
>  3 files changed, 205 insertions(+), 10 deletions(-)
> 
[...]

> +static int wacom_led_register_one(struct device *dev, struct wacom *wacom,
> +				  struct wacom_led *led, unsigned int group,
> +				  unsigned int id, bool read_only)
> +{
> +	int error;
> +	char *name;
> +
> +	name = devm_kasprintf(dev, GFP_KERNEL,
> +			      "%s::wacom-led_%d.%d",
> +			      dev_name(dev),
> +			      group,
> +			      id);

let's use something other than the - and _ mix please. I'd prefer
wacom-led-0.1 but I'll also accept wacom_led_0.1, the mix is a bit of an
eyesore.

also, arguably you don't need the "led" bit, see e.g.  "input3::capslock" so
even "input123::wacom-0.1" would be ok too.

Cheers,
   Peter