Re: kern/57446: The uts driver reports "touchscreen has no range report" and fails to attach device

["Frank Wille via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/57446; it has been noted by GNATS.

From: Frank Wille <frank%phoenix.owl.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/57446: The uts driver reports "touchscreen has no range
 report" and fails to attach device
Date: Mon, 28 Apr 2025 17:05:01 +0200

 I can confirm the problem on a Raspberry-Pi 3 running NetBSD 9.4.
 My touch screen monitor is a Dell P2418HT, with the same problem:
 
 uhidev0: Melfas LGDisplay Incell Touch, rev 2.00/1.00, addr 6, iclass 3/0
 [...]
 uts0 at uhidev0 reportid 16uts0: touchscreen has no range report
 
 There was already a solution over 10 years ago by Alexander Nasonov,
 submitted on tech-kern, here:
    https://mail-index.netbsd.org/tech-kern/2014/01/04/msg016400.html
 
 I compiled a new 9.4 kernel with this patch, which seems cleaner than 
 the workaround shown here, and it works fine.
 
 There is no reason to require a "range report" (Z-axis) on most touch 
 screens. Please make it optional.
 
 -- 
 Frank Wille