Hi Jordan, I hope you don't mind the imposition, Jean Delvare (khali on #linux-sensors) suggested I contact you about a geode driver that I need to write. (He said you wanted to do something similar a while back.) I need to get the kernel to become an i2c slave from time to time. The kernel is on a geode sc1100. Actually it is on one of Pascal's (pc-engines) "WRAP" boards. I have a little Atmel micro connected to the i2c bus on the geode, and currently I have it working perfectly as a slave. My problem is that I want the Atmel to be able to "push" info back to the geode without being polled. You see I want fairly low latency - I don't want to have to poll the Atmel every 10 milliseconds! At the moment I am using an "adapter" driver for the SC1100 called i2c-nscacb.c. It doesn't seem to have a maintainer, but it only had a couple of little bug-fixes required, so once I'd done that it worked perfectly. The driver that I wrote for the Atmel is basically a vanilla sensor driver. I need it to initially behave as a master to configure the Atmel, and then sit back and wait for "events" to come in from the Atmel. I am sure this means that I will need to modify the i2c-nscacb module to become interrupt-driven, and that is apparently where my needs overlap with yours? I must warn you that I've only been looking at the lmsensors code for a couple of days, so my knowledge is still full of pretty big holes, but I have to get this thing working, so I'll get there :-) How should I go about this problem? What would you suggest ? Many thanks, Thomas
