@BUGSworstnightmare - I wonder if you managed to get any further with the Touch controller?
Waveshare's response my request for the init strings for the SKU27579 Touch panel was somewhat predictable - "go check the wiki for that panel!"
https://www.waveshare.com/wiki/2.8inch_ ... _Touch_LCD
There is a link to a download containing example code on the wiki
https://files.waveshare.com/wiki/2.8inc ... erryPi.zip
You probably have this already but it's included here for others if they are interested.
I though it might be worth the effort to try out some of the examples and to read through the scripts and code to see if it offered any clues for a suitable overlay. Possibly a dumb idea but as I am trying to learn it's worth the effort. I have two DUTs. One is a Pi4 running latest 64 bit Bullseye with kernel 6.1.21 -v8+ and the other is a Pi5 with latest 64 bit Bookworm and kernel Each DUT is connected to its own Waveshare LCD SKU27579.
One of the Python scripts from the above download <2inch8_LCD_test.py> sends a few images to the LCD and then pops up a touch panel on the LCD. The script is invoked from a terminal running on a connected HDMI screen and subsequent touches on the LCD write the X and Y co-ordinates to the terminal. It looks similar but less verbose than the evtest output from your last post code segment.
I found the X and Y co-ordinates matched pretty closely to the centre and four outer corners of the LCD with X1, Y1 bottom left and X239, Y318 top right of LCD. Not bad for a 240x320 panel. Both DUTs behaved the same.
There is C code in the C directory of the aforementioned download that seems to match the Python scripts for functionality so someone with better understanding of C might be able to glean something that might help with the overlay?
I'm happy to test anything that needs testing or provide info from my DUTs.
Waveshare's response my request for the init strings for the SKU27579 Touch panel was somewhat predictable - "go check the wiki for that panel!"
https://www.waveshare.com/wiki/2.8inch_ ... _Touch_LCD
There is a link to a download containing example code on the wiki
https://files.waveshare.com/wiki/2.8inc ... erryPi.zip
You probably have this already but it's included here for others if they are interested.
I though it might be worth the effort to try out some of the examples and to read through the scripts and code to see if it offered any clues for a suitable overlay. Possibly a dumb idea but as I am trying to learn it's worth the effort. I have two DUTs. One is a Pi4 running latest 64 bit Bullseye with kernel 6.1.21 -v8+ and the other is a Pi5 with latest 64 bit Bookworm and kernel Each DUT is connected to its own Waveshare LCD SKU27579.
One of the Python scripts from the above download <2inch8_LCD_test.py> sends a few images to the LCD and then pops up a touch panel on the LCD. The script is invoked from a terminal running on a connected HDMI screen and subsequent touches on the LCD write the X and Y co-ordinates to the terminal. It looks similar but less verbose than the evtest output from your last post code segment.
I found the X and Y co-ordinates matched pretty closely to the centre and four outer corners of the LCD with X1, Y1 bottom left and X239, Y318 top right of LCD. Not bad for a 240x320 panel. Both DUTs behaved the same.
Code:
ok@RaspberryPi:~/2.8inch_Capacitive_Touch_LCD/Python $ python 2inch8_LCD_test.py TouchPad_ID:0xf,0x0,0xca,0xcaTouchPad_X_MAX:240 TouchPad_Y_MAX:320D1F4:0xb,0x0,0x8,0x0D1F8:0xf0,0x0,0x40,0x1D1FC:0xf,0x0,0xca,0xcaD200:0xff,0xff,0xff,0xffD204:0x5,0x4b,0x48,0x1D208:0x1,0x0,0x0,0x1CACA Read:0xcacaSuccess:Detected CST328.INFO:root:show imageTouch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=98 Y=148 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=102 Y=156 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=1 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=239 Y=318 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=319 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:Touch : X=1 Y=1 points=1CACA Read:^CDEBUG:root:spi endDEBUG:root:gpio cleanup...INFO:root:quit:I'm happy to test anything that needs testing or provide info from my DUTs.
Statistics: Posted by peter.arq — Sun Aug 25, 2024 6:10 pm