Hi First of all: I am a Newbie and since three days I am trying to read and learn as much as I can, because I have to do a study-project. I tried to understand: the i2c-Documentation in my 2.4.22 Kernel, some general I2C-Docus/FAQs and a Linux-Hardware-Control book. I also red the new_drivers file and didn't undertand mutch of all ;) The goal of this study-project is to attach a A/D-Converter (Analog-Voltage to Digital-Signal) to a PC. It is a learn-project where other students (and I) should learn principles about electronics and computer-measurement. Voltage over a pt100 (resistor variegating Ohm by tempreature) should be transfeard by a 16-Bit A/D-Converter into a PC. It would be great to have/make a program that reads more than 3 times a secound the measured voltage-value. So that I can display it for example with gnu-plot or at realtimie. So I bought a I2C 7Bit-Adress ADS1110 (ADS1110A0IDBVT by TexasInstruments) 16-Bit and would like to mount it to a i2c-philips-par wireing. The Datasheet of the ADS1110 can be found at: http://www-s.ti.com/sc/ds/ads1110.pdf But howto talk to the ADS1110 ? Is there a simple C Program/Example? Is it hard to write sutch a driver? Do I have to be root to read out the values? Are there other known similar projects to mine? I found the Hadware Hacking Site and supposed that my project should be possible. Is there someone who could help me, is interested in contribution? regards Honschu PS: I would like to subscribe to the mailinglist to learn more.