Logitech G430 on Linux about headsetcontrol HOT 3 CLOSED

joe@ironforge:~/Projects/HeadsetControl-g430$ lsusb -d 046d: -v

Bus 003 Device 008: ID 046d:0a4d Logitech, Inc. G430 Surround Sound Gaming Headset
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        16
  idVendor           0x046d Logitech, Inc.
  idProduct          0x0a4d G430 Surround Sound Gaming Headset
  bcdDevice            1.20
  iManufacturer           1 Logitech
  iProduct                2 Logitech G430 Gaming Headset
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          253
    bNumInterfaces          4
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0 
      iInterface              0 
...

// vendor is needed multiple times, so we can define it here
#define VENDOR_LOGITECH 0x046d

struct device {
    uint16_t idVendor;
    uint16_t idProduct;

    int interfaceNumber;
}

// and then initialize every "device" with static initialization
struct device device_g930 = { .idVendor = VENDOR_LOGITECH, .idProduct = 0x0a1f, .interfaceNumber = 3};