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From: "Henrik Rydberg" <rydberg@euromail.se>
Date: Tue, 24 Apr 2012 00:31:46 +0200
To: Gustavo Padovan <gustavo@padovan.org>, Jiri Kosina <jkosina@suse.cz>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 4/6] hid: Create a generic device group
Message-ID: <20120423223146.GA6595@polaris.bitmath.org>
References: <1335175627-2270-1-git-send-email-rydberg@euromail.se>
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 <20120423212659.GD18564@joana>
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Hi Gustavo,

> > @@ -586,12 +586,12 @@ struct hid_descriptor {
> >  	struct hid_class_descriptor desc[1];
> >  } __attribute__ ((packed));
> >  
> > -#define HID_DEVICE(b, ven, prod) \
> > -	.bus = (b), \
> > -	.vendor = (ven), .product = (prod)
> > -
> > -#define HID_USB_DEVICE(ven, prod)	HID_DEVICE(BUS_USB, ven, prod)
> > -#define HID_BLUETOOTH_DEVICE(ven, prod)	HID_DEVICE(BUS_BLUETOOTH, ven, prod)
> > +#define HID_DEVICE(b, g, ven, prod)					\
> > +	.bus = (b), .group = (g), .vendor = (ven), .product = (prod)
> > +#define HID_USB_DEVICE(ven, prod)				\
> > +	.bus = BUS_USB, .vendor = (ven), .product = (prod)
> > +#define HID_BLUETOOTH_DEVICE(ven, prod)					\
> > +	.bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
> 
> It seems we don't use this macro anywhere else, why did you keep it?

It is actually used extensively in device lists, see for instance in
drivers/hid/hid-core.c.

Henrik