hid device info usage_page - part-cw/lambdanative GitHub Wiki
(hid-device-info->usage_page ptr)
This returns the usage page from the specified HID device enumeration.
| Parameter | Description |
|---|---|
| ptr | Enumeration pointer |
Example
> (define e (hid-enumerate 0 0))
> (hid-device-info->usage_page e)
12