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From: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
To: Jorge Fernandez Monteagudo <jorgefm@cirsa.com>
Cc: "kernelnewbies@kernelnewbies.org" <kernelnewbies@kernelnewbies.org>
Subject: Re: Multi-touch USB weird response
Date: Thu, 29 Jul 2021 11:06:44 -0400	[thread overview]
Message-ID: <153034.1627571204@turing-police> (raw)
In-Reply-To: <DB9PR10MB452283FB284532554A9B356AA1EB9@DB9PR10MB4522.EURPRD10.PROD.OUTLOOK.COM>


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On Thu, 29 Jul 2021 12:57:03 -0000, Jorge Fernandez Monteagudo said:

> Event: time 1627381396.770902, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35023100
> Event: time 1627381396.770902, -------------- SYN_REPORT ------------
> Event: time 1627381396.780891, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35029400
> Event: time 1627381396.780891, -------------- SYN_REPORT ------------
> Event: time 1627381396.789895, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35035700
> Event: time 1627381396.789895, -------------- SYN_REPORT ------------
> Event: time 1627381396.798896, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35041900
> Event: time 1627381396.798896, -------------- SYN_REPORT ------------
> Event: time 1627381396.807889, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35048200

Looks like somebody's got a timer that pops every 0.01 seconds  or so. 
(looks closer to 0.0098 or so actually)

'git grep SYN_REPORT' tells me that these two files are a good place to start reading:
Documentation/input/multi-touch-protocol.rst 
Documentation/input/event-codes.rst 

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  reply	other threads:[~2021-07-29 15:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29 12:57 Jorge Fernandez Monteagudo
2021-07-29 15:06 ` Valdis Klētnieks [this message]
2021-07-30  7:43 Jorge Fernandez Monteagudo

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