SetField
#define SetTD_alen(u, td, v) SetField((u), (td), dw2, 0, 11, (v))
#define SetTD_status(u, td, v) SetField((u), (td), dw2, 16, 8, (v))
#define SetTD_ioc(u, td, v) SetField((u), (td), dw2, 24, 1, (v))
#define SetTD_iso(u, td, v) SetField((u), (td), dw2, 25, 1, (v))
#define SetTD_ls(u, td, v) SetField((u), (td), dw2, 26, 1, (v))
#define SetTD_c_err(u, td, v) SetField((u), (td), dw2, 27, 2, (v))
#define SetTD_spd(u, td, v) SetField((u), (td), dw2, 29, 1, (v))
#define SetTD_PID(u, td, v) SetField((u), (td), dw3, 0, 8, (v))
#define SetTD_devaddr(u, td, v) SetField((u), (td), dw3, 8, 7, (v))
#define SetTD_endpt(u, td, v) SetField((u), (td), dw3, 15, 4, (v))
#define SetTD_dtogg(u, td, v) SetField((u), (td), dw3, 19, 1, (v))
#define SetTD_mlen(u, td, v) SetField((u), (td), dw3, 21, 11, (v))