On 13 October 2017 14:49:37 BST, Dmitry Mastykin <mastichi@xxxxxxxxx> wrote: >Hello, >(I'm sorry, the question may be too simple for this mailing list) >I'm working with max1136 via max1363 driver. >I can read raw values via sysfs. >But I cannot use it with iio_generic_buffer. > >I enable a channel: > echo 1 | sudo tee >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage0_en > >and then: > sudo ./iio_generic_buffer -g -n max1136 No trigger on that device as I don't think it has an internal clock. If a device provides its own trigger and you don't specify one, the demo code will figure it out. Actually for extra confusion that ti part is an oddity. Because of the block nature of its dma transfers it doesn't use a trigger at all. So you need to provide one from somewhere else. Various options but without hardware easiest would be a sysfs trigger or hrtimer trigger. >From phone not sure I can write a set of instructions for creating one though. J > >returns: > Failed to enable buffer: Invalid argument > >whilst with TI-am335x-adc driver I can read values. >Please suggest me what to try, or may be INDIO_DIRECT_MODE doesn't >suppose work with the buffer? >Thank you very much, >Dmitry Mastykin >-- >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 -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- 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
