Re: [PATCH] HID: hid-multitouch: forward MSC_TIMESTAMP

From	Jiri Kosina <jikos@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] HID: hid-multitouch: forward MSC_TIMESTAMP
Date	2017-10-02 14:40 +0200
Message-ID	<uw8aS-7hy-23@gated-at.bofh.it> (permalink)
References	<uh61k-3xX-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Tue, 22 Aug 2017, Nicolas Boichat wrote:

> Computes and forwards the device timestamp according to the
> specification.
> 
> Many devices use a 16-bit timestamp field, with a resolution
> of 100us, therefore rolling around very frequently (every
> 6.5 seconds). To make sure there is no ambiguity, the
> timestamp reported to the input stack reset to 0 whenever
> the time between 2 received events is greater than
> MAX_TIMESTAMP_INTERVAL (1 second).
> 
> Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>

> ---
> 
> Inspired from Benjamin Tissoires's patch here:
> https://patchwork.kernel.org/patch/1742181/, and changing the
> logic to resynchronize the timestamps to use received time
> instead of a potentially more fragile difference between
> the 2 deltas.

Benjamin, any objections on merging this one for 4.15? I like it.

Thanks,

-- 
Jiri Kosina
SUSE Labs

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH] HID: hid-multitouch: forward MSC_TIMESTAMP Jiri Kosina <jikos@kernel.org> - 2017-10-02 14:40 +0200
  Re: [PATCH] HID: hid-multitouch: forward MSC_TIMESTAMP Benjamin Tissoires <benjamin.tissoires@redhat.com> - 2017-10-02 15:10 +0200

csiph-web