Hi, I know that .../power/state files are deprecated, but I like using them for basic testing of a driver's suspend/resume routines. Anyway, echoing something in the .../power/state in current -git does not seem to work anymore. For instance, the driver's suspend routine is not called anymore when writing 3 while it was at least in 2.6.17 and 2.6.18. And reading the contents of the file afterwards now returns 0 while it seemed to return 2 before. I didn't have time to git-bisect the problem so far, I will if nobody has any idea. And if somebody knows what to use instead of .../power/state to test a driver's suspend/resume, I'd be happy to hear it too. The explanation in feature-removal-schedule.txt did not help a lot, neither did the thread I found on linux-pm :) thanks, Brice