Hi again, It seems is a definetly combination of HW and bus driver problems. Now a little excercise: 1) cold boot the device 2) modprobe scx200_acb 3) modprobe i2c-dev 3) i2cdump -y 0 0x4b b Try several times dumping in byte mode. Will the transfer be delayted too? I mean does the driver also produce the messages to syslog while in bytemode? Thanks regards Rudolf
