On Fri, Nov 3, 2017 at 9:15 PM, Aaron Armstrong Skomra <sko...@gmail.com> wrote: > > > On Fri, Nov 3, 2017 at 7:19 AM, Benjamin Tissoires > <benjamin.tissoi...@gmail.com> wrote: >> >> The Dell canvas 27 is an external monitor with pen and touch, but the >> pen is provided by Wacom, and the touch by Advanced Silicon. >> To have proper touch arbitration, we need to force xf86-input-wacom >> to also handle the touch part. >> >> Signed-off-by: Benjamin Tissoires <benjamin.tissoi...@gmail.com> >> --- >> conf/70-wacom.conf | 9 +++++++++ >> 1 file changed, 9 insertions(+) >> >> diff --git a/conf/70-wacom.conf b/conf/70-wacom.conf >> index a20e3a3..86a3f90 100644 >> --- a/conf/70-wacom.conf >> +++ b/conf/70-wacom.conf >> @@ -101,3 +101,12 @@ Section "InputClass" >> Driver "wacom" >> Option "Button2" "3" >> EndSection >> + >> +# Dell Canvas 27 (touch part is an Advanced Silicon, pen part a Wacom) >> +Section "InputClass" >> + Identifier "Dell Canvas 27 Touch" >> + MatchUSBID "2575:0204" >> + MatchDevicePath "/dev/input/event*" >> + MatchIsTouchscreen "true" >> + Driver "wacom" >> +EndSection >> -- > > > > HI Benjamin, > > I know that the last display device that I added support for required > changes to wcmUSB.c and > wcmValidateDevice.c [1] for Centos 6.
Oh... I thought the xorg wacom driver was now smart enough to not require such changes... > > I'm not very familiar with the x driver conf files, so it may be that this > also accomplishes > the same thing by another means. I'd say it's different. Here my patch just forces the Advanced Silicon touchscreen to be handled by xf86-input-wacom so the xorg driver can do touch arbitration. Your patch tweaks the tablet so that it is usable from the application point of view. We might need such changes also :/ > If you're just aiming for Centos 7 support, > or if you know > this conf file also works for Centos 6 this seems fine. Otherwise the driver > probably needs changes > similar to the commit below to support this device. If you'd like me to work > on that, let me know and I'll > see if I can find a device. I'd be happy if you could have a look at the device itself. Note that you need a kernel patch for it to report accurate coordinates [2]. But one solution could be to teach me what to check and I'll assess myself if we need changes in those files too. BTW, from my engineer point of view, I doubt we will be able to officially support it in CentOS 6. This requires a change in the kernel that depends on too many others (basically the whole HID stack). But this is not a Red Hat statement, just my wish that we should push back any request coming for this device on RHEL 6 :) Cheers, Benjamin [2] https://patchwork.kernel.org/patch/10040899/ > > Best, > Aaron > > [1] > https://sourceforge.net/p/linuxwacom/xf86-input-wacom/ci/b0a055425dfb983163b1d3c673a36aebf9536430/ >> >> 2.13.6 >> >> >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Linuxwacom-devel mailing list >> Linuxwacom-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel > > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxwacom-devel mailing list Linuxwacom-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel
