linux-kernel - Re: [PATCH 1/2] sony_ff_hid

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Message-Id: <20110601214924.36ec42ad.ospite@studenti.unina.it>
Date:	Wed, 1 Jun 2011 21:49:24 +0200
From:	Antonio Ospite <ospite@...denti.unina.it>
To:	Simon Wood <simon@...gewell.org>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Marcin Tolysz <tolysz@...il.com>, Jiri Kosina <jkosina@...e.cz>
Subject: Re: [PATCH 1/2] sony_ff_hid_descriptor

On Mon, 23 May 2011 03:19:58 -0700
Simon Wood <simon@...gewell.org> wrote:

> This patch modifies the HID descriptor to allow the reporting of
> the accelerometers and gyro via a joystick axis.

I am going to test it tomorrow, but for now I notice that the
Signed-off-by is missing. Wait for the test before resending tho.

Plus, the short commit message can be improved a little bit, and the
long commit message could use the classic imperative form used in kernel
commit messages: "Modify the HID descriptor to...", but these are just
suggestions.

Same comments for patch 2/2.

Thanks,
   Antonio

> ---
>  drivers/hid/hid-sony.c |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
> index 936c911..5c930dc 100644
> --- a/drivers/hid/hid-sony.c
> +++ b/drivers/hid/hid-sony.c
> @@ -28,6 +28,12 @@
>  #define SIXAXIS_CONTROLLER_USB  (1 << 1)
>  #define SIXAXIS_CONTROLLER_BT   (1 << 2)
>  
> +static const u8 sixaxis_rdesc_fixup[] = {
> +	0x95, 0x13, 0x09, 0x01, 0x81, 0x02, 0x95, 0x0C,
> +	0x81, 0x01, 0x75, 0x10, 0x95, 0x04, 0x26, 0xFF, 
> +	0x03, 0x46, 0xFF, 0x03, 0x09, 0x01, 0x81, 0x02
> +	};
> +
>  struct sony_sc {
>  	unsigned long quirks;
>  };
> @@ -43,6 +49,11 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
>  		hid_info(hdev, "Fixing up Sony Vaio VGX report descriptor\n");
>  		rdesc[55] = 0x06;
>  	}
> +	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) &&
> +			*rsize == 148 && rdesc[83] == 0x75) {
> +		hid_info(hdev, "Fixing up Sony Sixaxis report descriptor\n");
> +		memcpy((void *)&rdesc[83], (void *) &sixaxis_rdesc_fixup, sizeof(sixaxis_rdesc_fixup));
> +	}
>  	return rdesc;
>  }
>  
> -- 
> 1.7.4.1
> 
> 

-- 
Antonio Ospite
http://ao2.it

PGP public key ID: 0x4553B001

A: Because it messes up the order in which people normally read text.
   See http://en.wikipedia.org/wiki/Posting_style
Q: Why is top-posting such a bad thing?

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