EXTCAP_DBC_CAPABILITY = 0x000f000a
EXTCAP_DBC_DOORBELL = 0x00000000
EXTCAP_DBC_ERSTSIZE = 0x00000000
EXTCAP_DBC_ERST_LOW = 0x00000000
EXTCAP_DBC_ERST_HIGH = 0x00000000
EXTCAP_DBC_ERDP_LOW = 0x00000000
EXTCAP_DBC_ERDP_HIGH = 0x00000000
EXTCAP_DBC_CONTROL = 0x000f0000
EXTCAP_DBC_STATUS = 0x00000000
EXTCAP_DBC_PORTSC = 0x000000a0
EXTCAP_DBC_CONT_LOW = 0x00000000
EXTCAP_DBC_CONT_HIGH = 0x00000000
EXTCAP_DBC_DEVINFO1 = 0x00000000
EXTCAP_DBC_DEVINFO2 = 0x00000000
