sorry but i don't understand about The "Device Class GUID", please you help me?? for example,
#define HID_CLASSGUID {0x6bdd1fc6, 0x810f, 0x11d0,{ 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f }}
so :{ 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f }.what is it??
please explain for me,i don't understand about it. what it means?? sorry ,because my english is not good