On 10/08/2013 09:46 AM, crzy wrote: > I want to change device attributes at /sys/iio..... for AD-FMCOMMS1-EBZ.When > will the driver detects the value is changed?will the driver dynamically > detects them ? > i want to change values dynamically like > echo 500000000 > out_altvoltage1_DAC_CLK_frequency Hi, Yes you can change the attributes dynamically. The driver will update the registers as soon as you write the new value. But in case of the FMCOMMS1 board you should modify the sampling frequency of the DAC by writing to the "out_altvoltage_1A_sampling_frequency" attribute of the "cf-ad9122-core-lpc" device. - Lars -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html