linux-kernel - Re: [PATCH 1/2] HID: hid-multitouch: refactor last_field

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110421124505.GA7916@polaris.bitmath.org>
Date:	Thu, 21 Apr 2011 14:45:05 +0200
From:	"Henrik Rydberg" <rydberg@...omail.se>
To:	Benjamin Tissoires <benjamin.tissoires@...c.fr>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...-enac.fr>,
	PenMount <penmount.touch@...il.com>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] HID: hid-multitouch: refactor last_field_index

On Thu, Apr 21, 2011 at 02:15:59PM +0200, Benjamin Tissoires wrote:
> the current implementation requires the devices to report
> HID_DG_CONTACTCOUNT to set the last_field_index value.
> However, devices reporting in serial mode (DWAV and PenMount)
> do not send this field.
> Other devices (3M) add other fields in the reports descriptor
> that are not multitouch related at the end, thus the need to
> add a special case in the default case when handling events.
> 
> A first work around has been set up but with PenMount devices,
> we have reached the limit.
> 
> The idea is to calculate the last_field_index by relying only on
> multitouch fields the device send. This allows us to remove
> the handling of non-multitouch events in hid-multitouch, and
> guarantee that the function mt_emit_event is always called.
> 
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...c.fr>
> ---

Reviewed-and-tested-by: Henrik Rydberg <rydberg@...omail.se>

Thanks,
Henrik
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/