RT2661_H2M_BUSY 2007 dev/ic/rt2661.c if (RAL_READ(sc, RT2661_H2M_MAILBOX_CSR) & RT2661_H2M_BUSY) RT2661_H2M_BUSY 2011 dev/ic/rt2661.c RT2661_H2M_BUSY | RT2661_TOKEN_NO_INTR << 16 | arg);