Input driver on 1.15.1 vs. 1.19.6
alan.coopersmith at oracle.com
Thu Oct 10 01:59:28 UTC 2019
On 10/9/19 6:05 PM, Software Orchestration wrote:
> Hi, I have a client that has a working serial input driver on Ubuntu 14.04,
> which is running the Xorg 1.15.1 server.
> I'm tasked with getting this to work on Ubuntu 18.04 which is running Xorg 1.19.6
> In looking at the X.Org Server wiki page:
> I see that 1.15.1 is not supported anymore, but 1.19.6 still is.
I have no idea who decided what releases to list there as supported, but X.Org
certainly isn't supporting all those releases upstream - though some downstream
distros may be doing so. X.Org itself is mainly maintaining the 1.20 series now:
> My question is if anything would have changed for the input device driver specs
> between these versions that would effect a serial input device? This is a touch
> screen, but it interfaces through serial.
There certainly have been driver API/ABI updates between the two:
> The code uses xf86ReadSerial() and xf86WriteSerial().
Doesn't look like there's been a whole lot of change there in recent years:
> Are there any examples using the latest Xorg server available?
Examples of input device drivers for Xorg?
> The sources go back pretty far on 14.04 and I see ifdefs for XFREE86_V3 and
XFREE86_V3 code is almost 20 years out of date now, while XFREE86_V4 code would
be closer to 15 years out of date.
-Alan Coopersmith- alan.coopersmith at oracle.com
Oracle Solaris Engineering - https://blogs.oracle.com/alanc
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