[lkml]   [2014]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Disable input device
On Sat 2014-11-29 18:24:03, Pali Rohár wrote:
> Hello,
> there is request to introduce some option (via sysfs) to disable
> one input device. Originally it was for tsc2005 touchscreen found
> on Nokia N900 cellphone. Use case is to completely disable
> touchscreen when phone is in pocket or when screen is locked via
> slide switch (to prevent random clicks).
> But it would be better to have disable option for all input
> devices. Sometimes input device is not use and only consume
> power. Another case is when input device (e.g. keyboard or
> touchpad) is integrated into machine (e.g. on laptops) and user
> does not want to use it (so make sure that kernel does not send
> events to userspace).
> I would like to ask, how to solve it?
> What do you think about adding new sysfs file "disable" (accept
> values 1 or 0) for every input device? With "1" it cause that
> kernel will drop all events from specific input device and if
> driver provide some function is can be called (e.g. for power
> management or disabling device at hardware level).

That makes sense to me. Dmitry, would such interface be acceptable?

(cesky, pictures)

 \ /
  Last update: 2014-12-06 14:01    [W:0.047 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site