On Sat 2007-08-25 13:36:00, Yan Burman wrote: > Pavel Machek wrote: > >On Sat 2007-08-11 14:26:02, Yan Burman wrote: > > > >>HP Mobile Data Protection System 3D ACPI driver. Similar to hdaps in > >>functionality. > >>This driver provides 4 kinds of functionality: > >>1) Creates a misc device /dev/accel that acts similar to /dev/rtc and > >>unblocks > >>the process reading from it when the device detects free-fall interrupt > >>2) Functions as an input class device to provide similar functionality to > >>hdaps, in order to be able to use the laptop as a joystick > >>3) Provides an interface similar to hdaps, so that hdapsd could work with > >>it > >>4) Makes it possible to power the device off. > >> > > > >I assume this means 'power the sensor down'? What is interface for > >that? > > > >Aha, /sys. Could we simply power off the device when its input device > >is not opened? > > > > > No, we can't since the sys interface provides the position info and some > applications (hdaps apps for example) use this interface.
One more reason not to use /sys to access the position data. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
