On Wed, Feb 04, 2015 at 08:23:37AM -0800, Guenter Roeck wrote: > Large EEPROMS (24c32 and larger) require a two-byte data address > instead of just a single byte. Implement support for such EEPROMs > with SMBus commands. > > Support has limitations (reads are not multi-master safe) and is slow, > but it works. Practical use is for a system with 24c32 connected to > Intel 82801I (ICH9). Can't you simply use i2c-dev to access the EEPROM? In multi-master environments, things can really go wrong, so I wouldn't like to add something dangerous by default. Maybe with a module parameter named "allow-multimaster-unsafe-access-to-large-eeproms-with-smbus" which is default off. But I'd really prefer the i2c-dev solution. Hooking a 16bit EEPROM to SMBus is daring, after all. SMBus is multi-master, too.
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