Re: Kworld 315U help?

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On Wed, Oct 21, 2009 at 1:35 AM, Franklin Meng <fmeng2002@xxxxxxxxx> wrote:
> I was wondering if someone would be able to help me with getting the analog and inputs for the Kworld 315U working.  I was able to get the digital part working with help from Douglas Schilling and wanted to get the remaining portions of the device working.
>
> I have traces but have not made much progress.  In addition I also have some questions about the information that the parse_em28xx.pl skips and does not decode.
>
> For example here is some of the data that doesn't seem to be decoded..
> unknown: 40 03 00 00 a0 00 01 00 >>> 08
> unknown: c0 02 00 00 a0 00 01 00 <<< d0
> unknown: 40 03 00 00 a0 00 01 00 >>> 08
> unknown: c0 02 00 00 a0 00 01 00 <<< d0
> unknown: 40 03 00 00 a0 00 01 00 >>> 22
> unknown: c0 02 00 00 a0 00 01 00 <<< 01
> unknown: 40 03 00 00 a0 00 01 00 >>> 04
> unknown: c0 02 00 00 a0 00 02 00 <<< 1a eb
> unknown: 40 03 00 00 a0 00 01 00 >>> 20
> unknown: c0 02 00 00 a0 00 01 00 <<< 46
> unknown: 40 03 00 00 a0 00 01 00 >>> 14
> unknown: c0 02 00 00 a0 00 04 00 <<< 4e 07 01 00
>
> Anyways, any help that can be provided is appreciated.

Those look like i2c commands to the onboard eeprom, which is at i2c
address 0xa0.  For example:

unknown: 40 03 00 00 a0 00 01 00 >>> 04       // set eeprom read offset to 0x04
unknown: c0 02 00 00 a0 00 02 00 <<< 1a eb  // read two bytes back from eeprom

Cheers,

Devin

-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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