SSC_IEN_NACKEN 551 drivers/i2c/busses/i2c-st.c ien = SSC_IEN_NACKEN | SSC_IEN_ARBLEN; SSC_IEN_NACKEN 677 drivers/i2c/busses/i2c-st.c it = SSC_IEN_NACKEN | SSC_IEN_TEEN | SSC_IEN_ARBLEN;