Thank you for the fast reply. I checked the clock speed, It can be changed in the specified limits for MLX90614 with similar results in the data output. Using an I2C analyzer I was able to see that SCL stretching occures on unpredictable times. If these SCL stretching is on specific point in the communication process or match the one of the SMbus timeout condition unpredictable data is output, with out any error from the I2C subsystem. Only the "i2c-adapter i2c-0: sendbytes: NAK bailout." message is correctly thrown. best regards Matthias Zacharias matthias.zacharias@xxxxxxxxxxxxxxxx >>> Bill Gatliff <bgat@xxxxxxxxxxxxxxx> 30.11.2010 17:44 >>> Is the i2c clock speed in spec with the slave part(s)? I have seen weird things happen when the clock speed is wrong, especially when it's too fast... b.g. -- Bill Gatliff bgat@xxxxxxxxxxxxxxx -------------------- BMK electronic solutions GmbH Werner-von-Siemens-Str. 6, Eingang 18 f D-86159 Augsburg Tel. +49 (0) 821 / 207 88 - 700 Fax +49 (0) 821 / 207 88 - 721 info@xxxxxxxxxxxxxxxx GeschÃftsfÃhrer: Dipl.-oec. Alois KnÃferle Sitz: Augsburg HR-Nr.: B21197 --------------------- Diese E-mail kann vertrauliche Informationen enthalten. Falls Sie diese E-Mail irrtÃmlich erhalten haben, informieren Sie bitte unverzÃglich den Absender und lÃschen Sie diese E-Mail von jedem Rechner, auch von den Mailservern. Jede Verbreitung des Inhalts, auch die teilweise Verbreitung, ist in diesem Fall untersagt. AuÃer bei Vorsatz oder grober FahrlÃssigkeit schliessen wir jegliche Haftung fÃr Verluste oder SchÃden aus, die durch Viren befallene Software oder E-Mails verursacht werden. This e-mail may contain confidential information. If you received this e-mail in error, please contact the sender and delete this e-mail from your computer, including your mailservers. Any dissemination, even partly, is prohibited. Except in case of gross negligence or wilful misconduct we accept no liability for any loss or damage caused by software or e-mail viruses. -- 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
