linux-kernel - Re: [2/2] hid-multitouch: introduce IrTouch Infrared USB device

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Date:	Fri, 28 Jan 2011 17:24:00 +0100
From:	Florian Echtler <floe@...terbrot.org>
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: [2/2] hid-multitouch: introduce IrTouch Infrared USB device

Hello everyone,

> The product id is the 42 inches one. I don't know if they have
> other product id for the other size, or if it is a per-size product id.
This is very interesting, I have access to a 65" IrTouch system which
has VID 0x6615 and PID 0x0C20. I wasn't aware that there are already
kernel drivers for their systems, I had been playing around with their
awful binary driver and had done some experiments with libusb. Is there
a documentation of some kind available?
 
> diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
> index 92a0d61..b1dd7ad 100644
> --- a/drivers/hid/hid-ids.h
> +++ b/drivers/hid/hid-ids.h
> @@ -333,6 +333,9 @@
>  #define USB_VENDOR_ID_IMATION		0x0718
>  #define USB_DEVICE_ID_DISC_STAKKA	0xd000
>  
> +#define USB_VENDOR_ID_IRTOUCHSYSTEMS	0x6615
> +#define USB_DEVICE_ID_IRTOUCH_INFRARED_USB	0x0070
I will test this on our screen next week.
I assume that I should use the tree from:
http://git.kernel.org/?p=linux/kernel/git/rydberg/input-mt.git;a=summary

Note: after briefly browsing through hid-multitouch.c, it seems to me
that there might be issues; the USB interface on our screen doesn't
report as HID device, but as vendor class (0xFF).

Florian


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