linux-kernel - Re: [PATCH 6/8] HID-multitouch: Add egalax ID for Acer Iconia W500

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Date:	Wed, 23 Nov 2011 11:46:51 +0100
From:	Marek Vasut <marek.vasut@...il.com>
To:	Benjamin Tissoires <benjamin.tissoires@...c.fr>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Henrik Rydberg <rydberg@...omail.se>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...-enac.fr>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/8] HID-multitouch: Add egalax ID for Acer Iconia W500

> From: Marek Vasut <marek.vasut@...il.com>
> 
> This patch adds USB ID for the touchpanel in Acer Iconia W500. The panel
> supports up to five fingers, therefore the need for a new addition of panel
> types.
> 
> originally Signed-off-by: Marek Vasut <marek.vasut@...il.com>
> CC: Marek Vasut <marek.vasut@...il.com>
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...c.fr>
> ---
>  drivers/hid/hid-core.c       |    1 +
>  drivers/hid/hid-ids.h        |    1 +
>  drivers/hid/hid-multitouch.c |    3 +++
>  3 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
> index b776bfb..e3c9e61 100644
> --- a/drivers/hid/hid-core.c
> +++ b/drivers/hid/hid-core.c
> @@ -1409,6 +1409,7 @@ static const struct hid_device_id
> hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
> USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, {
> HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
> USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, {
> HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
> USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, +	{
> HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
> USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, {
> HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
> USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, {
> HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
> { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2515) }, diff
> --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
> index a9526fd..fc49ab3 100644
> --- a/drivers/hid/hid-ids.h
> +++ b/drivers/hid/hid-ids.h
> @@ -235,6 +235,7 @@
>  #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C	0x720c
>  #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B	0x726b
>  #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1	0x72a1
> +#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302	0x7302
>  #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
> 
>  #define USB_VENDOR_ID_ELECOM		0x056e
> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
> index db39228..8e920cd 100644
> --- a/drivers/hid/hid-multitouch.c
> +++ b/drivers/hid/hid-multitouch.c
> @@ -701,6 +701,9 @@ static const struct hid_device_id mt_devices[] = {
>  			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
>  	{ .driver_data = MT_CLS_EGALAX,
>  		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
> +			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
> +	{ .driver_data = MT_CLS_EGALAX,
> +		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
>  			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
> 
>  	/* Elo TouchSystems IntelliTouch Plus panel */

It seems good, but how do you detect the number of fingers the panel can handle? 
That's autodetected now?

M
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