[i2c] [PATCH] Add a new-style driver for most I2C EEPROMs
Jean Delvare
khali at linux-fr.org
Sun Jun 8 10:40:38 CEST 2008
Hi David,
On Tue, 3 Jun 2008 13:36:35 -0700, David Brownell wrote:
> I personally won't worry much about 24c00 chips; I have some for
> testing, but haven't seen new systems using them for some time.
> It was news for me that they exist on DDC links!
Actually I don't think there are 24C00 chips on DDC links. These chips
only provide 128 bit (16 bytes) of storage space, which is insufficient
to hold EDID data. So I think these are 24C01 chips (1 kb) which
behave like the 24C00 as far as I2C addressing is concerned (i.e.
answering to all addresses 0x50-0x57.) Apparently Atmel make such
chips (the datasheet doesn't mention any I2C address, and the 3 EEPROM
pins which are typically used for address selection are labelled "NC".)
--
Jean Delvare
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