Messages in this thread | | | Date | Sat, 16 May 2009 15:50:40 +0300 | From | Felipe Balbi <> | Subject | Re: [RFC] Add Input IOCTL for accelerometer devices |
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Hi,
On Sat, May 16, 2009 at 06:19:33AM +0200, ext Mohamed Ikbel Boulabiar wrote: > On Fri, May 15, 2009 at 9:02 PM, Felipe Balbi <felipe.balbi@nokia.com> wrote: > > > Yeah, let's try to define the best way to expose accelerometers with > > linux kernel and avoid a sysfs hell. Better sooner than later. > > isn't the best way to add a thing like the one for battery for any input device > /proc/acpi/battery/CMB0/state > or even in /sys/input/devices/XXXX > > and let any userspace application do what she wants with information ?
This case is the other way around. We are trying to set proper thresholding and other parameters depending on the user application (gaming, screen rotation, etc).
> > Say we wanna use the accelerometer for both screen rotation and gaming, > > that device isn't doing hw monitoring and still we _do_ want to set > > different thresholds and irq requests/types for different use cases, > > right ? > > Another reason for preparing the interface I just cited.
Yes, and the interface would be an input ioctl so that userland would give us the parameters and the driver just sets them to proper registers.
-- balbi
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