[lkml]   [2010]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2/2] input: mt: Document the MT event slot protocol (rev2)
On Mon, May 24, 2010 at 10:21 AM, Dmitry Torokhov
<> wrote:
> On Monday 24 May 2010 10:06:15 am Ping Cheng wrote:
>> >> This topic is outside of the _MT_ protocol discussion.
>> >>
>> >> However, it is indeed an issue with all filtered input events, both
>> >> for MT and regular ones.
>> >>
>> >> I think we need to add an ioctl to enable user land driver/client to
>> >> signal the kernel driver to send all events without filtering, just
>> >> once. Hot-plugged devices and X driver starts after user has contacted
>> >> with the device are two examples that the client would miss filtered
>> >> events.
>> >>
>> >> Dmitry, do you think it is a valid suggestion?
>> >
>> Those EVIOCs only give us the static values (max/min/supported keys,
>> etc.).  We need their dynamic input data here, the actual x, y,
>> button, pressure, etc. Am I missing something about those EVIOs?
> Yes you are ;) Supported events are reported via EVIOCGBIT, EVIOCGKEY and
> EVIOCGSW will return current state of keys/switches. As far as EVIOCGABS
> goes, it also returns, besides min/max/etc, last reported _values_ of the
> ABS_* events.

Oh, My God! I should have listened to Mark Twain :).

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2010-05-24 19:35    [W:0.046 / U:0.348 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site