On 19/01/15 09:57, Marek Vasut wrote: > On Monday, January 19, 2015 at 08:20:31 AM, Juergen Borleis wrote: >> On Saturday 17 January 2015 01:22:10 Kristina Martšenko wrote: >>> Reading a channel through sysfs, or starting a buffered capture, can >>> occasionally turn off the touchscreen. >>> [...] >> >> I have my old ChumbyOne around (i.MX23). How to test this buffered capture >> while using the touchscreen part of the ADC (I have never used the IIO >> before). That's great, thanks for offering to test this. > Last time I checked there was drivers/staging/iio/Documentation/generic_buffer.c > , but you can also wait for a more precise advice from Kristina . Hope it helps > at least a bit ;-) Yeah, I used generic_buffer.c for testing. You can enable some channels like this: echo 1 >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage7_en echo 1 >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage10_en echo 1 >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage12_en echo 1 >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage13_en echo 1 >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage14_en echo 1 >/sys/bus/iio/devices/iio\:device0/scan_elements/in_voltage15_en And then start the capture and read 10 samples with generic_buffer: ./generic_buffer -n 80050000.lradc -c 10 And using the touchscreen at the same time should work now. Let me know if it doesn't :) Kristina -- 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
