linux-kernel - Re: [PATCH 2/9] HID: make a bus from hid code

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Message-Id: <1210547158.16390.28.camel@violet.holtmann.net>
Date:	Mon, 12 May 2008 01:05:58 +0200
From:	Marcel Holtmann <marcel@...tmann.org>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	anssi.hannula@...il.com, akpm@...ux-foundation.org,
	Jiri Slaby <jslaby@...e.cz>
Subject: Re: [PATCH 2/9] HID: make a bus from hid code

Hi Jiri,

> Make a bus from hid core. This is the first step for converting all the
> quirks and separate almost-drivers into real drivers attached to this bus.
> 
> It's implemented to change behaviour in very tiny manner, so that no driver
> needs to be changed this time.
> 
> Also add generic drivers for both usb and bt into usbhid or hidp
> respectively which will bind all non-blacklisted device. Those blacklisted
> will be either grabbed by special drivers or by nobody if they are broken at
> the very rude base.
> 
> Signed-off-by: Jiri Slaby <jslaby@...e.cz>

<snip>
 
> +static const struct hid_device_id hid_generic_bt_ids[] = {
> +	{ HID_BT_DEVICE(HID_ANY_ID, HID_ANY_ID) },
> +	{ }
> +};

please rename it to hidp_table[].

Also can we do HID_BLUETOOTH_DEVICE() here. Since the bus constant is
called BUS_BLUETOOTH. Please don't shortcut it.

> +static struct hid_driver hid_generic_bt = {
> +	.name = "hid-generic-bt",
> +	.id_table = hid_generic_bt_ids,
> +};

And this one to hidp_driver instead of hid_generic_bt.

Also the name "hid-generic-bt" is not okay. Call it "hidp" since that is
the driver name. An alternative would be "hid-bluetooth". I don't like
the "generic" part and we never used the shortcut "bt" in any sysfs
visible file.

Do we really need the "hid-" prefix here. Since it is on the HID bus
anyway, we can leave the magic details to the driver model and simply
call it "bluetooth".

Other than that:

Acked-by: Marcel Holtmann <marcel@...tmann.org>

Regards

Marcel


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