Hi Cong,

You should't access to keyboard I/O-ports directly while driver is running. Same here with USB driver. You can 
communicate with driver to test your keyboard.

> - QNX has USB driver deverlopment kits, where can I download it? Can someone shared this USB DDK for QNX4 for me ?

Latest USB DDK for QNX 4 is available here:

http://www.qnx.com/download/group.html?programid=8692

Respectfully,
Oleg

9 окт. 2018 г., в 6:12:07, Cong Pham <community-noreply@qnx.com> написал:

> Hi,
> 
> I have a keyboard test application. It gets keyboard interrupt and reads key-scan-code via qnx_hint_attach() and inp( 
0x60 ), inp( 0x64) functions.
> It works fine for PS/2 keyboard (device: /dev/kbd).
> 
> Now, when I change from PS/2 to USB keyboard, the new keyboard is running ok ( with drivers: io-usb, devu-usb and 
device: /dev/usbkbd0 ), but my test application does not run. It could not get any interrupt.
> 
> - Is there any solution for testing usb keyboard?
> - QNX has USB driver deverlopment kits, where can I download it? Can someone shared this USB DDK for QNX4 for me ?
> 
> 
> 
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