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Steve Markgraf steve at steve-m.deHi Torben, On 11.06.2018 22:15, Torben Keil wrote: > I tried to get a signal over the i2c interface but it wasn't sucsessful. > Do you have an idea how to enable the i2c interface on the fl2k chip? I have some code sitting here, but when I wanted to clean it up recently, it didn't work anymore as expected. I'll need to debug it with a logic analyzer. Note that the FL2000 can only do I2C transfers of a fixed length of 4 bytes, it was probably really only meant to read EDID EEPROMs. In the original driver, single register writes to the ITE HDMI interface chip that some devices have are first reading 4 registers, then modifying the desired byte, and then writing them back. Regards, Steve