Hi Jean, > On Wed, 11 May 2016 09:34:52 +0200, Jean Delvare wrote: > > In commit 062737fb6d90 you added support for the Intel Lynx Point PCH > > to the i2c-i801 driver. I happen to have a machine with this chipset > > since a few weeks, and found that the i2c-i801 driver doesn't work > > properly on it. Specifically, the eeprom driver return 0xff for all > > EEPROM bytes. The at24 driver fails too, with a timeout. > > > > After some testing using i2cdetect, i2cdump and i2cget, I found that > > some I2C transactions work (SMBUS_QUICK, SMBUS_READ_BYTE, > > SMBUS_READ_BYTE_DATA, SMBUS_READ_WORD_DATA, > SMBUS_READ_BLOCK_DATA), > > however others do not (SMBUS_WRITE_BYTE, SMBUS_READ_I2C_BLOCK.) I > > can't easily test other transaction types as all I have on the SMBus > > are SPD EEPROMs on my memory modules. > > > > Did you test the i2c-i801 driver on an actual Lynx Point PCH chipset? > > Or did you only add the PCI ID of the device, assuming it would work? I tested on an Intel system with Lynx Point and saw everything working, consistent with what you're seeing on the SUSE system. Regards, Seth -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
