USB HID Sample Application

Overview

This sample app demonstrates use of a USB Human Interface Device (HID) driver by the Zephyr project. This very simple driver is enumerated as a raw HID device. This sample can be found under samples/subsys/usb/hid in the Zephyr project tree.

Requirements

This project requires a USB device driver.

Building and Running

This sample can be built for multiple boards, in this example we will build it for the reel_board board:

Using west:

west build -b reel_board samples/subsys/usb/hid

Using CMake and ninja:

cmake -B build -GNinja -DBOARD=reel_board samples/subsys/usb/hid
ninja -C build

After you have built and flashed the sample app image to your board, plug the board into a host device, for example, a PC running Linux. The board will be detected as shown by the Linux journalctl command:

$ journalctl -k -n 10
usb 7-1: New USB device found, idVendor=2fe3, idProduct=0100
usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 7-1: Product: Zephyr HID sample
usb 7-1: Manufacturer: ZEPHYR
usb 7-1: SerialNumber: 0.01
input: ZEPHYR Zephyr HID sample as /devices/platform/vhci_hcd.0/usb7/7-1/7-1:1.0/0003:2FE3:0100.0046/input/input81
hid-generic 0003:2FE3:0100.0046: input,hidraw0: USB HID v1.10 Device [ZEPHYR Zephyr HID sample] on usb-vhci_hcd.0-1/input0

You can monitor report sending using standard Linux usbhid-dump command.

$ sudo usbhid-dump -d 2fe3:0100 -es
Starting dumping interrupt transfer stream
with 1 minute timeout.

007:012:000:STREAM             1537362690.341208
 01 02