OMAP_I2C_IV_REG
omap_i2c_read_reg(omap, OMAP_I2C_IV_REG); /* Read clears */
[OMAP_I2C_IV_REG] = 0x03,
[OMAP_I2C_IV_REG] = 0x34,
iv = omap_i2c_read_reg(omap, OMAP_I2C_IV_REG);