oc_getreg
msg->buf[i2c->pos++] = oc_getreg(i2c, OCI2C_DATA);
u8 stat = oc_getreg(i2c, OCI2C_STATUS);
u8 status = oc_getreg(i2c, reg);
ctrl = oc_getreg(i2c, OCI2C_CONTROL);
u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);
u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);
u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);