On Fri, Aug 14, 2015 at 11:43:52AM -0700, Greg Wilson-Lindberg wrote: > Thank you very much, > Regards, Greg > To replicate the issue I did the following: - Started a touchscreen enabled application ts_test - In another terminal started a dump of /dev/iio:device0 hexdump -C /dev/iio\:device0 - In yet another terminal enable the buffer cd /sys/bus/iio/devices/iio\:device0 echo 1 > scan_elements/in_voltage4_en echo 1 > buffer/enable Once the buffer is enabled the hexdump window starts spewing out readings as expected. The touchscreen is unresponsive as expected. Then I started occassionally enabling and disabling the buffer and noticed something very off. When enabling the buffer sometimes the readings from the hexdump would start and abruptly stop. In this state the entire system is nonresponsive. None of the terminals are excepting input and the system is in complete deadlock. Then I touched the screen and the deadlock is lifted and readings started again. As if the behavior was not weird enough, occassionally after the buffer is disabled, the touchscreen readings are mangled. Next step, figure out what is going wrong. > > -----Original Message----- > > From: Michael Welling [mailto:mwelling79@xxxxxxxxx] On Behalf > > Of Michael Welling > > Sent: Friday, August 14, 2015 11:40 AM > > To: Greg Wilson-Lindberg > > Cc: Michael Welling; Daniel Baluta; linux-iio@xxxxxxxxxxxxxxx > > Subject: Re: BBB IIO ADC access not working > > > > On Thu, Aug 13, 2015 at 04:00:08PM -0700, Greg Wilson-Lindberg wrote: > > > Hello Michael, > > > > > > I tried a current debian release from RCN with kernel 4.1, touch > > > screen and mouse still locked up. > > > > > > > I will do my best to replicate the issue on a target here. > > > > > Regards, > > > Greg > > > > > -- 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
