From: "Pali Rohár" <pali.rohar@gmail.com>
To: Richard Pospesel <pospeselr@gmail.com>
Cc: Chris Diamand <chris@diamand.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-input@vger.kernel.org
Subject: Re: [PATCH] Input: byd - use DMI detection
Date: Sat, 12 Nov 2016 18:48:12 +0100 [thread overview]
Message-ID: <201611121848.13617@pali> (raw)
In-Reply-To: <CAHc7Qt2xPTsWbjZdy1FBWCT5Lz43=9Tzj5FVpsn87=6VfFmPGg@mail.gmail.com>
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On Saturday 12 November 2016 18:33:57 Richard Pospesel wrote:
> > How is windows detecting presence of BYD touchpads? Should we use
> > something similar? Or are not there some (public) documentation
> > about it?
>
> Windows doesn't detect it correctly without BYD's kernel driver
> installed.
Yes, that is expected. What is needed to to find out how that BYD's
kernel driver detect if device is normal PS/2 mouse connected to
ordinary PS/2 port, or if it is PS/2 BYD touched.
Microsoft has only preinstalled genetic PS/2 driver, so touchpad is
probably working as ordinary mouse (if that BYD's kernel driver is not
installed).
> The only publicly available info on these can be found here:
>
> http://bydit.com/doce/products/microelectronics/2474.html
Webserver is really slow... HTML page is still loading...
> Iv'e already tried getting mroe info from BYD, all they could find
> was a PDF which enumerated the gesture types and the packet id used
> for each (byte 4). No info there regarding protocol, etc.
I understand... it is hard to get some information...
One option is to trying to ask BYD again, another is to try reverse
engineer or sniff data exchange from windows driver.
--
Pali Rohár
pali.rohar@gmail.com
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next prev parent reply other threads:[~2016-11-12 17:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-11 23:57 [PATCH] Input: byd - use DMI detection Chris Diamand
2016-11-12 12:12 ` Pali Rohár
2016-11-12 14:48 ` Chris Diamand
2016-11-12 15:04 ` Pali Rohár
2016-11-12 17:33 ` Richard Pospesel
2016-11-12 17:48 ` Pali Rohár [this message]
2016-11-12 18:01 ` Richard Pospesel
2016-11-12 19:13 ` Dmitry Torokhov
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