merge
commented
6 years ago Thanks alot for your feedback! I know there are other issues with the 1.x.x versions here and I'll look at them asap (which doesnt mean anything though)
As for your setup though: If you use the ts_uinput daemon program from tslib, you don't need xf86-input-tslib at all! The X11 evdev driver handles it directly. Just put a "Device" option in, or create a udev rule that detects the ts_uinput virtual device.
Am 9. Jänner 2018 17:29:30 MEZ schrieb zwvk notifications@github.com:
I have been working with Buildroot, developing for beaglebone black. I have a 4Dsystems gen4 4.3" resistive touch screen cape attached.
I started with this tutorial: http://www.jumpnowtek.com/beaglebone/BeagleBone-Systems-with-Buildroot.html, however I had to modify my device tree to support the gen4 touch screen. I have enabled X.org and am using tslib to filter the touch events into the uinput device which is setup as an input device in my 80-tslib.conf file, here is my modified file:
# # Catch-all tslib loader for udev-based systems # # We match on all touchscreen devices. If you have multiple, please specify. Section "InputClass" Identifier "tslib touchscreen catchall" MatchIsTouchscreen "on" MatchDevicePath "/dev/input/event*" Driver "tslib" EndSection Section "InputDevice" Identifier "tslib" Driver "tslib" Option "ScreenNumber" "0" Option "Width" "480" Option "Height" "272" Option "Rotate" "NONE" Option "TslibDevice" "/dev/uinput" Option "CorePointer" EndSectionThe Option "Width" and "Height" parameter in 80-tslib.conf don't seem to have any effect.
I have finally gotten my device calibrated and working correctly, but I had to make these modifications to the tslib.c file:
--- a/src/tslib.c (Original) +++ b/src/tslib.c (Bug Fix) @@ -284,19 +284,19 @@ InitValuatorAxisStruct(device, 0, XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X), 0, /* min val */ - priv->width - 1, /* max val */ - priv->width, /* resolution */ + 480 -1,//priv->width - 1, /* max val */ + 1024,//priv->width, /* resolution */ 0, /* min_res */ - priv->width, /* max_res */ + 1024,//priv->width, /* max_res */ Absolute); InitValuatorAxisStruct(device, 1, XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y), 0, /* min val */ - priv->height - 1,/* max val */ - priv->height, /* resolution */ + 272 -1,//priv->height - 1,/* max val */ + 1024,//priv->height, /* resolution */ 0, /* min_res */ - priv->height, /* max_res */ + 1024,//priv->height, /* max_res */ Absolute); InitValuatorAxisStruct(device, 2, @@ -311,19 +311,19 @@ InitValuatorAxisStruct(device, 0, XIGetKnownProperty(AXIS_LABEL_PROP_ABS_MT_POSITION_X), 0, /* min val */ - priv->width - 1, /* max val */ - priv->width, /* resolution */ + 480 -1,//priv->width - 1, /* max val */ + 1024,//priv->width, /* resolution */ 0, /* min_res */ - priv->width, /* max_res */ + 1024,//priv->width, /* max_res */ Absolute); InitValuatorAxisStruct(device, 1, XIGetKnownProperty(AXIS_LABEL_PROP_ABS_MT_POSITION_Y), 0, /* min val */ - priv->height - 1,/* max val */ - priv->height, /* resolution */ + 272 -1,//priv->height - 1,/* max val */ + 1024,//priv->height, /* resolution */ 0, /* min_res */ - priv->height, /* max_res */ + 1024,//priv->height, /* max_res */ Absolute); InitValuatorAxisStruct(device, 2,I don't know why this was necessary, only that it fixes the upside down uncalibrated touch screen. These values were determined first by trial and error, until i realized that the width and height values should be the resolution of the device, which I collected with the ts_calibrate command.
# ts_calibrate xres = 480, yres = 2721024 for the resolution was chosen based upon the values that used to be there as I found in this link: https://boundarydevices.com/debian-in-more-depth-adding-touch-support/
Anyhow, I am satisfied with the setup I currently have, but I thought I should post these results in case someone else has the same issue/ wants to track down a better solution.
-- Martin Kepplinger http://martinkepplinger.com sent from mobile
zwvk
I have been working with Buildroot, developing for beaglebone black. I have a 4Dsystems gen4 4.3" resistive touch screen cape attached.
I started with this tutorial: http://www.jumpnowtek.com/beaglebone/BeagleBone-Systems-with-Buildroot.html, however I had to modify my device tree to support the gen4 touch screen. I have enabled X.org and am using tslib to filter the touch events into the uinput device which is setup as an input device in my 80-tslib.conf file, here is my modified file:
The Option "Width" and "Height" parameter in 80-tslib.conf don't seem to have any effect.
I have finally gotten my device calibrated and working correctly, but I had to make these modifications to the tslib.c file:
I don't know why this was necessary, only that it fixes the upside down uncalibrated touch screen. These values were determined first by trial and error, until i realized that the width and height values should be the resolution of the device, which I collected with the ts_calibrate command.
1024 for the resolution was chosen based upon the values that used to be there as I found in this link: https://boundarydevices.com/debian-in-more-depth-adding-touch-support/
Anyhow, I am satisfied with the setup I currently have, but I thought I should post these results in case someone else has the same issue/ wants to track down a better solution.