Dear Michael Hennerich, I shall post iio quesris in this mail list as per your suggestions. AD7793 driver is built into kernel. The chip gets configured and am able to read data on continuous mode via spi interface using ad7793 driver at kernel level. While testing userspace test iio-ring to read data from ring buffer, generic_buffer code was executed, it proceeds till opening /sys/bus/iio/devices/device0:buffer0 and Read call fails. In fs I can list the iio device ad7793 with following properties get/set. root:/> ls /sys/bus/iio/devices/device0\:buffer0/ bytes_per_datum enable power subsystem dev length scan_elements uevent root:/> I find access0 and event0 missing in this list. Is that the reason for read() fails. Please help. Thanks Mala -- Open WebMail Project (http://openwebmail.org) -- 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
