usb hid gadget under Linux

[mckinley94c]

New to embedded system and hardware level programming. Does this repo allow for a linux desktop to act as hid for a Windows machine? Or is it internal so it would a hid on the same machine this repo is running on? Sorry for my ignorance and thank you for any help.

[mcuee]

No. hidapi (as well as libusb) is for the host side.

For device side, you should look at linux gadget. Your Linux host may or may not support it.
https://www.kernel.org/doc/html/v6.11/driver-api/usb/gadget.html
https://docs.kernel.org/usb/gadget_hid.html

Examples from github:
https://github.com/vpelletier/python-functionfs/tree/master/examples/hid
https://github.com/xairy/raw-gadget/blob/master/examples/keyboard.c

[mcuee]

If you host does not support, not so sure if you can use the following or not (emulated HID device). I tend to think it may not work for your use case.
https://github.com/martinpitt/umockdev/tree/main/devices/hidraw