linux-kernel - Re: [PATCH] Driver for Primax keyboards violating USB HID spec

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]

Date:	Fri, 14 Oct 2011 01:35:52 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Terry Lambert <tlambert@...omium.org>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Driver for Primax keyboards violating USB HID spec

On Thu, 13 Oct 2011, Terry Lambert wrote:

> Primax keyboards with the issue this driver addresses report modifier
> keys as in band key events instead of as out of band modifier bits,
> resulting in the modifier keys generating key up events immediately
> before the keys they are intended to modify.  This driver rewrites
> the raw report data from such keyboards into USB HID 1.11 compliant
> report data.  It only matches the USB vendor and product IDs for the
> keyboard it has been tested on. Since there are several keyboards,
> notably a number of laptops and folding USB keyboards known to have
> similar unresolved problem reports, the list is expected to grow.
> 
> Signed-off-by: Terry Lambert <tlambert@...omium.org>

Terry,

thanks for the patch.

[ ... snip ... ]
> +static int px_input_mapping(struct hid_device *hid, struct hid_input *hi,
> +	struct hid_field *field, struct hid_usage *usage,
> +	unsigned long **bit, int *max)
> +{
> +	struct px_device *px = hid_get_drvdata(hid);
> +
> +	px->input_primax = hi->input;
> +
> +	/* Remap keys, if necesssary, here */
> +
> +	return 0;
> +}

I fail to see the point of this routine ... ?

Otherwise, the patch seems fine.

Thanks,

-- 
Jiri Kosina
SUSE Labs
--
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/