#define ENVY24_PCI_ID 0x1724
#define PCIR_CCS   0x10 /* Controller I/O Base Address */
#define ENVY24_CCS10 0x10
#define ENVY24_CCS11 0x11
#define ENVY24_CCS12 0x12
#define ENVY24_CCS13 0x13
#define CCS_INDEX    0x03
#define CCS_DATA     0x04