MUSB2_REG_TXMAXP
MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, td->reg_max_packet);
MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, td->reg_max_packet);
MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, wMaxPacket);
MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, wMaxPacket);
MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, wMaxPacket);
REGDECL(MUSB2_REG_TXMAXP, 0x0080),