From: Daniel Exner <dex@dragonslave.de>
To: Linux Media Mailing List <linux-media@vger.kernel.org>
Cc: dex@dragonslave.de
Subject: Re: Terratec Cinergy T XS Firmware (Kernel 3.14.1)
Date: Fri, 25 Apr 2014 21:40:11 +0200 [thread overview]
Message-ID: <535ABA1B.8010701@dragonslave.de> (raw)
In-Reply-To: <20140424182626.47f5f01e@samsung.com>
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Hi,
Am 24.04.2014 23:26, schrieb Mauro Carvalho Chehab:
> Em Thu, 24 Apr 2014 15:24:20 -0400
> Devin Heitmueller <dheitmueller@kernellabs.com> escreveu:
[...]
> What can do, instead, is to sniff the traffic at the USB port, and get
> the proper GPIO, XCLK and I2C speed settings for this device.
>
> My suggestion is to either run it on a QEMU VM machine, redirecting
> the USB device to the VM and sniffing the traffic on Linux, or to
> use some USB snoop software.
>
> Take a look at: http://linuxtv.org/wiki/index.php/Bus_snooping/sniffing
>
> We have a script that parses em28xx traffic, converting them into
> register writes. All you need to do is to sniff the traffic and check
> what GPIO registers are needed to reset the device.
>
> Then, add the corresponding data at em28xx-cards.c.
Ok, I managed to setup a VBox with "TheOtherOS" and usbmon and sniffed
some traffic when I (virtually) plugged in the device.
The file is (compressed) about ~620 KiB.
I am honest: I have no clue what I sniffed or how I should read GPIO
registers from there.
If anyone is interested in helping me I would send the file directly.
Greetings
Daniel
--
Daniel Exner
Public-Key: https://www.dragonslave.de/pub_key.asc
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prev parent reply other threads:[~2014-04-25 19:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-23 20:34 Terratec Cinergy T XS Firmware (Kernel 3.14.1) Daniel Exner
2014-04-23 20:42 ` Devin Heitmueller
2014-04-23 20:50 ` Daniel Exner
2014-04-24 11:29 ` Mauro Carvalho Chehab
2014-04-24 19:09 ` Daniel Exner
2014-04-24 19:24 ` Devin Heitmueller
2014-04-24 21:26 ` Mauro Carvalho Chehab
2014-04-25 19:40 ` Daniel Exner [this message]
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