netdev - Re: [PATCH 3/3] [IrDA] Kingsun KS-959 IrDA USB driver

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Message-Id: <20070828.155844.89038053.davem@davemloft.net>
Date:	Tue, 28 Aug 2007 15:58:44 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	samuel@...tiz.org
Cc:	netdev@...r.kernel.org, irda-users@...ts.sourceforge.net,
	a_villacis@...osanto.com
Subject: Re: [PATCH 3/3] [IrDA] Kingsun KS-959 IrDA USB driver

From: Samuel Ortiz <samuel@...tiz.org>
Date: Mon, 27 Aug 2007 01:15:17 +0300

> This dongle does not follow the usb-irda specification, so it needs its own
> special driver. First, it uses control URBs for data transfer, instead of
> bulk or interrupt transfers; the only interrupt endpoint exposed seems to
> be a dummy to prevent the interface from being rejected. Second, it uses
> obfuscation and padding at the USB traffic level, for no apparent reason
> other than to make reverse engineering harder (full details on obfuscation
> in comments at beginning of source). Although it is advertised as a "4 Mbps
> FIR dongle", it apparently loses packets at speeds greater than 57600 bps.
> 
> On plugin, this dongle reports vendor and device IDs: 0x07d0:0x4959 .
> 
> The Windows driver that is used normally to control this dongle has a
> filename of KS-959.SYS .
> 
> Signed-off-by: Alex Villacís Lasso <a_villacis@...osanto.com>
> Signed-off-by: Samuel Ortiz <samuel@...tiz.org>

Also applied, thanks a lot!
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