[linux-dvb] Re: WinTV DVB-s MAC addr on EEPROM

[Holger Waechtler <holger@convergence.de>]

Michael Glaum wrote:
> Question for the Hauppauge WinTV DVB-S gurus.
>
> At least with version linuxtv-dvb-1.0.0-pre2 when I add a
> network interface via dvbnet the MAC address is not populated.
> net_start.pl makes a call to set the hw ether addr, versus
> reading it off the card.
>
> That being said, I notice that the card has an ATMEL AT24C16N
> serial EEPROM. I guess it would be a huge coincidence if this
> EEPROM has hanging off the I2C bus and that I could grab the
> MAC address via stv0299_readreg(),
you must not read from i2c adress 0x68 (like stv0299_readreg does) but 
from adress 0x50 where the EEPROM is located. See e.g. the ves1820 
driver for details.

> an existing routine for the
> frontend chip on this board. If so, maybe someone would even
> know the address location of the MAC? I haven't been able to
> get through to Hauppauge on this EEPROM.
The MAC is not stored plain binary. If you find out how to calculate the 
real MAC please let us know or send a patch so that we can add this to 
the driver.

Right now you're able add network interfaces for any number of MAC 
adresses, I'm sure that's still an interesting feature for many people.

Holger



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