> From: Amit Kucheria > > On Sun, 2006-09-17 at 15:40 +0200, ext Pavel Machek wrote: > > On Sun 2006-09-17 16:28:23, Amit Kucheria wrote: > > > On Sun, 2006-09-17 at 15:18 +0200, ext Pavel Machek wrote: ... > > > I was referring to the default method of power save on > Zaurus on the > > > Sharp ROMs. It was S-T-D (Flash), IIRC. I do not recall drivers > > > doing runtime power management on Zaurus; that is a major > difference > > > from Nokia 770. > > > > I'm pretty sure Zauruses do s-t-ram. Flash is read only > during normal > > operation. > > > > I'm very sure Sharp zaurus sl-5500 does s-t-ram. After all, it has > > 16MB of flash and 64MB of ram. Suspend-to-flash is not an option. > > > > Pavel > > If that is the case, I stand corrected. Did the drivers > support dynamic idling? > > Although something about the time it took to resume still > bothers me.... > I will try to find time to flash it and check. Google provided a reference to what appears to be a student paper on power management in the Zaurus, at: <http://personals.ac.upc.edu/mpericas/zaurus_project-final.pdf#search=%2 2%22power%20management%22%20zaurus%20linux%22>. >From the paper, it sounds like it has cpufreq scaling and a sleep mode that is basically suspend-to-RAM. This was apparently done via backporting stuff to 2.4. Scott
