linux-kernel - Re: [PATCH v10] leds: USB: HID: Add support for MSI GT683R led panels

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Message-ID: <20140623182432.GB30831@kroah.com>
Date:	Mon, 23 Jun 2014 14:24:32 -0400
From:	Greg KH <greg@...ah.com>
To:	Janne Kanniainen <janne.kanniainen@...il.com>
Cc:	johan@...nel.org, jkosina@...e.cz, cooloney@...il.com,
	linux-kernel@...r.kernel.org, linux-leds@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: [PATCH v10] leds: USB: HID: Add support for MSI GT683R led panels

On Mon, Jun 23, 2014 at 02:23:24PM -0400, Greg KH wrote:
> On Mon, Jun 23, 2014 at 08:16:48PM +0300, Janne Kanniainen wrote:
> > +	ret = sysfs_create_group(&led->hdev->dev.kobj, &gt683r_attribute_group);
> > +	if (ret) {
> > +		hid_err(hdev, "failed to create sysfs attributes\n");
> > +		goto fail;
> > +	}
> 
> No, you need to set the attribute group _before_ you call
> led_classdev_register, as that is where the device will be created in
> sysfs.  Surely the other led drivers already do this?  I'm almost afraid
> to go look...

Yes, they do it already, set .dev_attr_group and you should be fine.

thanks,

greg k-h
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