linux-kernel - Re: [PATCH] drivers/hid: the support for Hanwang tablet

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Message-ID: <alpine.LNX.2.00.1008110931240.2702@pobox.suse.cz>
Date:	Wed, 11 Aug 2010 09:33:13 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Xing Wei <weixing@...wang.com.cn>
Cc:	linux-input <linux-input@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/hid: the support for Hanwang tablet

On Wed, 11 Aug 2010, Xing Wei wrote:

> From: Xing Wei  <weixing@...wang.com.cn>
> 
> This patch is the support for tablet of BeiJing HanwangTechnology Co, Ltd.
> The main purpose is to make the device taken over by our driver.
> The driver code will be submitted later.
> 
> Signed-off-by: Xing Wei <weixing@...wang.com.cn>
> 
> ---
> This is our first time to submit the patch for linux.We'll really appreciate the comment and advice.
> 
> diff -uprN -X linux-2.6.35-vanilla/Documentation/dontdiff linux-2.6.35-vanilla/drivers/hid/hid-core.c devel/linux-2.6.35/drivers/hid/hid-core.c
> --- linux-2.6.35-vanilla/drivers/hid/hid-core.c	2010-08-02 06:11:14.000000000 +0800
> +++ devel/linux-2.6.35/drivers/hid/hid-core.c	2010-08-11 18:20:13.832088816 +0800
> @@ -1759,6 +1759,11 @@ static bool hid_ignore(struct hid_device
>  		    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
>  			return true;
>  		break;
> +	case USB_VENDOR_ID_HANWANG:
> +		if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
> +		    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
> +			return true;
> +		break;
>  	}
>  
>  	if (hdev->type == HID_TYPE_USBMOUSE &&
> diff -uprN -X linux-2.6.35-vanilla/Documentation/dontdiff linux-2.6.35-vanilla/drivers/hid/hid-ids.h devel/linux-2.6.35/drivers/hid/hid-ids.h
> --- linux-2.6.35-vanilla/drivers/hid/hid-ids.h	2010-08-02 06:11:14.000000000 +0800
> +++ devel/linux-2.6.35/drivers/hid/hid-ids.h	2010-08-11 18:17:32.967089161 +0800
> @@ -526,5 +526,8 @@
>  #define USB_DEVICE_ID_KYE_ERGO_525V	0x0087
>  #define USB_DEVICE_ID_KYE_GPEN_560	0x5003
>  
> +#define USB_VENDOR_ID_HANWANG		0x0b57
> +#define USB_DEVICE_ID_HANWANG_TABLET_LAST	0x8fff
> +#define USB_DEVICE_ID_HANWANG_TABLET_FIRST	0x5000

The patch is fine (I'd only suggest swapping 'LAST' and 'FIRST' lines here 
to keep proper ordering), but I will be applying it only together with the 
driver once you submit it, as it doesn't make sense stand-alone.

The driver is not HID-based (i.e. not using hid bus), but completely 
standalone, right?

-- 
Jiri Kosina
SUSE Labs, Novell Inc.
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