Hi, is there any documents instruct how to read data from eeprom, like
If it's a serial (I2C or SPI) EEPROM then in general you may have to go through serial hardware. I would expect that in a PC you'd have to go through serial hardware that's designed to make life easy when you have to work with a bazzilion different devices, which means the driver is going to be byzantine.
So find out how your hardware is put together, and maybe even look for a "circuit cellar" type of article on the web (or on paper) where someone's done this with much simpler hardware.
93c46 is "three-wire serial", meaning SPI. There is an SPI controller embedded in the rtl8139 chip, and the rtl8139 driver is going to be specific to that particular SPI controller.
-hpa
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