Guennadi Liakhovetski writes: > So, there's not a single STR implementation for ppc in the kernel?... The STR implementation for powerbooks predates the generic STR support (by quite a long way, it was originally done in 1998). These days it uses some parts of the generic STR support but the top-level control is still using the old code, because the generic STR code doesn't provide all the hooks we need yet. For historical reasons, the top-level powerbook STR code is in drivers/macintosh/via-pmu.c, and is invoked via an ioctl on /dev/pmu. Paul.