package adc is for USB Audio Device Class devices.

package cdc is for USB Communication Device Class devices.

package hid is for USB Human Interface Devices.

CDC ACM.

CDC Data.

Endpoint.

64 for Full Speed, EPT size max is 1024.

non standard requests.

standard requests.

for Interrupt In.

for Interrupt Out.

HID.

for Bulk In.

for Bulk Out.

Interface.

bmRequestType.

Manufacturer is the manufacturer name displayed for this USB device.

Product is the product name displayed for this USB device.

ProductID aka PID is the product number associated with the officially assigned vendor number for this USB device.

Serial is the serial value displayed for this USB device.

English.

VendorID aka VID is the officially assigned vendor number for this USB device.