cap_header
u32 cap_header, cap_id, cap_length;
cap_header = readl(curr_cap);
cap_id = FIELD_GET(CAP_HEADER_ID, cap_header);
cap_length = FIELD_GET(CAP_HEADER_LENGTH, cap_header);
struct tb_cap_extended_long cap_header;
struct tb_cap_basic cap_header;
struct tb_cap_extended_short cap_header;
struct cap_header hdr = { .version = _LINUX_CAPABILITY_VERSION_3 };