fw_xfer_alloc_buf
struct fw_xfer * (*fw_xfer_alloc_buf)(int send_len, int recv_len);
struct fw_xfer *fw_xfer_alloc_buf (int, int);
xfer = fw_xfer_alloc_buf(slen, rlen);
rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
xfer = fw_xfer_alloc_buf(8, 4);
fw_xfer_alloc_buf,
if ((xfer = gFirewire->fw_xfer_alloc_buf(pbytes,
xfer = gFirewire->fw_xfer_alloc_buf(pay_len, B_PAGE_SIZE/*XXX*/);