• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 98 subscribers
  • Views 203 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

AM4378: How to handle USB touch pannel ??

AM4378: USB touchscreen interface

Kihan Lee
Prodigy 210 points
Part Number: AM4378

Hello,

I'm developing two custom boards based on AM437x GP-EVM.

One board use DSS  and the other use HDMI for the interface with LCD.

And also developing LCD Control boards for two kinds of I/F.

In case of HDMI, I want to use USB Interface for touch. but I have no idea and no information to implement this solution.

Are there any solutions or information for this in SDK ? 

Thanks, kihan.

  • 0
    TI__Guru**** 169391 points

    Hi Kihan,

    [   36.670124] usb 1-1: new full-speed USB device number 2 using xhci-hcd                                                  
[   36.871810] usb 1-1: New USB device found, idVendor=0461, idProduct=0022, bcdDevice= 1.00                               
[   36.903760] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0                                           
[   36.935357] usb 1-1: Product: Newhaven Display                                                                          
[   36.939926] usb 1-1: Manufacturer: NHD                                                                                  
[   37.400859] input: NHD Newhaven Display  as /devices/platform/44000000.ocp/483c0000.omap_dwc3/483d0000.usb/xhci-hcd.5.a2
[   37.464991] hid-generic 0003:0461:0022.0001: input: USB HID v1.00 Device [NHD Newhaven Display ] on usb-xhci-hcd.5.auto0

    The message above is from the kernel log you posted at https://e2e.ti.com/support/processors/f/791/p/902888/3337647#3337647, which shows the USB touch panel is enumerated properly and registered as a HID device. So now the question is how you will use the HID device, it is up to your Linux system, for example, what software you use to display on LCD.