linux-kernel - Re: [PATCH] hid: ACRUX game controller force feedback support

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Message-ID: <20100715165706.GA20371@core.coreip.homeip.net>
Date:	Thu, 15 Jul 2010 09:57:06 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	x0r <x0r@...life.ru>
Cc:	Jonathan Cameron <kernel@...23.retrosnub.co.uk>,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	Jiri Kosina <jkosina@...e.cz>
Subject: Re: [PATCH] hid: ACRUX game controller force feedback support

Hi,

On Thu, Jul 15, 2010 at 10:49:56AM +0100, Jonathan Cameron wrote:
> > +
> > +static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
> > +{
> > +    int ret;
> > +
> > +    dev_dbg(&hdev->dev, "ACRUX HID hardware probe...");
> > +
> > +    ret = hid_parse(hdev);
> > +    if (ret) {
> > +        dev_err(&hdev->dev, "parse failed\n");
> > +        goto err;
> > +    }
> > +
> > +    ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT&  ~HID_CONNECT_FF);
> > +    if (ret) {
> > +        dev_err(&hdev->dev, "hw start failed\n");
> > +        goto err;
> > +    }
> > +
> > +    axff_init(hdev);

Error handling for axff_init() too please.

> > 
> > --- a/drivers/hid/Kconfig
> > +++ b/drivers/hid/Kconfig
> > @@ -68,6 +68,21 @@
> >      ---help---
> >      Support for A4 tech X5 and WOP-35 / Trust 450L mice.
> > 
> > +config HID_ACRUX
> > +    tristate "ACRUX support" if EMBEDDED
> > +    depends on USB_HID
> > +    default !EMBEDDED
> > +    ---help---
> > +    Say Y here if you have ACRUX game controllers.
> > +
> > +config ACRUX_FF
> > +    bool "ACRUX force feedback support"
> > +    depends on HID_ACRUX
> > +    select INPUT_FF_MEMLESS
> > +    ---help---
> > +    Say Y here if you want to enable force feedback support for ACRUX
> > +    game controllers.
> > +

Why 2 separate CONFIG options? I do not see any special handling except
for force feedback control itself; doesn't the device work with vanilla
kernel (sans FF of course)?

I also have a string suspicion the file is indented with 4 spaces, please
make sure it is indented with tabs.

And since it is HID device please make sure you copy Jiri Kosina
(CCed).

Thanks.

-- 
Dmitry
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