Messages in this thread | | | From | Dmitry Torokhov <> | Subject | Re: [PATCH] Input: Support for a less exclusive grab. | Date | Tue, 12 Jun 2007 01:07:13 -0400 |
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Hi Zephaniah,
On Saturday 09 June 2007 04:48, Zephaniah E. Hull wrote: > EVIOCGRAB is nice and very useful, however over time I've gotten > multiple requests to make it possible for applications to get events > straight from the event device while xf86-input-evdev is getting events > from the same device. > > Here is the least invasive patch I could think of, it changes the > behavior of EVIOCGRAB in some cases, specificly behavior is identical if > the argument is 0 or 1, however if the argument is true and != 1, then > it does a 'non exclusive grab', a better name might be handy. > > What this does is allow the events to go to everything that's using > evdev to get events, but grabs it from anything else. About as close to > what people want as I can get, and fairly non-invasive.
Unfortunately this also robs non-legacy input handlers (such as rfkill-input) of input events. Does xf86-input-evdev really needs to grab devices exclusively? I guess we can't abandon the standard keyboard driver until X supports hotplugging. How close is it to support devices coming and going?
If we can't remain as is until X hotplug is ready then I'd rather had a separate ioctl that disables legacy input handlers (keyboard, mousedev) for a given input device.
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