The I2C Control Register bits RFDAIE and RFFIE were mixed up. In addition to this fix, this patch adds the missing bit DRSIE for completeness. Signed-off-by: Roland Stigge <stigge@xxxxxxxxx> --- Applies to v3.5 This patch for i2c-pnx applies to: PNX4008, LPC31xx, LPC32xx. Can you please test and double-check the manuals of PNX4008 and LPC31xx? I only found this via the manual of LPC32xx but assume it's the same for the others, also. Thanks in advance! drivers/i2c/busses/i2c-pnx.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- linux-2.6.orig/drivers/i2c/busses/i2c-pnx.c +++ linux-2.6/drivers/i2c/busses/i2c-pnx.c @@ -48,8 +48,9 @@ enum { mcntrl_afie = 0x00000002, mcntrl_naie = 0x00000004, mcntrl_drmie = 0x00000008, - mcntrl_daie = 0x00000020, - mcntrl_rffie = 0x00000040, + mcntrl_drsie = 0x00000010, + mcntrl_rffie = 0x00000020, + mcntrl_daie = 0x00000040, mcntrl_tffie = 0x00000080, mcntrl_reset = 0x00000100, mcntrl_cdbmode = 0x00000400, -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html