But wait! There's more ...

Starting with the AR7420™, the DeviceID field in VS_SW_VER is now the DEVICE_CLASS field and identifies the Device Family, not the device type. Instead, the IDENT field in VS_SW_VER identifies the device type and the IDENT field is located at a variable offset within the message frame. Previously, the IDENT was located a fixed offset within the frame.

Table 4.3.  Device Identification

Chipset Softloader Bootloader Firmware Identity
INT6000 0x01   0x01 0x00000042
INT6300   0x01 0x02 0x00006300
INT6400   0x03 0x03 0x00006400
AR7400   0x03 0x04 0x00007400
AR6405   0x03 0x05 0x00006400
AR7420   0x05 0x20 0x001CFCFC
QCA6410   0x05 0x21 0x001B58EC
QCA7000   0x05 0x22 0x001B589C