AN249: Human Interface Device Tutorial - Silicon Labs
devices according to capability and interface requirements. When a host retrieves device information, class classification helps the host determine how to communicate with the USB device. 3.2. Human Interface Device Class The HID class devices usually interfac e with humans in some capacity. HID-class devices include mice, keyboards, printers, etc.
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www.usb.org4 Device Class Definition for Human Interface Devices (HID) Version 1.11 6/27/00: 3. Management Overview Information about a USB device is stored in segments of its ROM (read-only memory). These segments are called descriptors. An interface descriptor can identify a device as belonging to one of a finite number of classes. The HID class