On Thu, Aug 24, 2006 at 08:44:25AM +0000, moreau francis wrote: > Mips one seems to be a copy and paste of arm one and both of them > have removed all APM bios stuff orginally part of i386 implementation. The BIOS stuff makes no sense on ARM - there isn't a BIOS to do anything with. > It doesn't seem that APM is something really stable and finished. It's complete. It's purpose is to provide the interface to userland so that programs know about suspend/resume events, and can initiate suspends. Eg, the X server. The power management really comes from the Linux drivers themselves, which are written to peripherals off when they're not in use. The other power saving comes from things like cpufreq - again, nothing to do with the magical "APM" or "ACPI" terms. On embedded platforms, you shouldn't think about power management in terms of the non-embedded PM technologies. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core
