Ok fine Jean ,I understand the point you made dts file. But I don't know about using the sensors to read temperature value. Is it some registers needed to read from LM73 chip or simply the entries in /sysfs/class/hwmon ? I am just looking to know the basic implementation of using "sensors" to read temperature . On Sun, Mar 2, 2014 at 7:09 AM, Jean Delvare <jdelvare@xxxxxxx> wrote: > On Sun, 2 Mar 2014 07:03:22 -0800, Romanic Dean wrote: > > Thanks Jean for your kind response. > > > > Yes I could see some entries under /sys/class/hwmon/hwmon0 > > > > hwmon0 is probed well at boot time but I couldn't see hwmon1 is probed at > > boot time? > > > > Is it because of only one reg =<0x49> entry in dts file? > > Yes. Each hardware monitoring device is represented by a hwmon class > device in the kernel. If you have a single LM73 chip in the system, you > get hwmon0 and that's it. If you have several LM73 chips, you must > declare all of them in the device tree. > > > Also it would be great if you can point me out any example where temp > from > > lm73 sensor is read by sysfs? > > > > I am sure some one has already worked on it. > > You are asking the wrong question. There's really nothing specific > about lm73. All hwmon drivers implement a standard sysfs interface, so > it doesn't matter if you have an LM73 or any other temperature sensor > chip. > > I already told you that you can use "sensors" to read the temperature > value, there's nothing more I can add, until you tell me why that isn't > suitable for your needs (or that it doesn't work, and you report enough > details about the failure so that we can help you figure it out.) > > -- > Jean Delvare > SUSE L3 Support > _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors