if you actually run "echo -9 > $SLOTS" as the root user do you still have this issue?
On Sunday, December 1, 2013 7:42:06 PM UTC-6, Bit Pusher wrote: > > I am trying to use both the A/D and the high-speed PRU direct I/O. I have > the A/D working using Adafruit_BBIO.ADC and separately, I can write > directly using the PRU based on the TI examples and using a Device Tree > Overlay, but have not been successful using them concurrently yet. By using > cat /sys/devices/bone_capemgr.9/slots, I found that the commands in python > of > >>>import Adafruit_BBBIO.ADC as ADC > >>>ADC>setup() > loaded the cape-bone-iio-00A0.dtbo overlay > > as > > /lib/firmware\> cat $SLOTS > 0: 54:PF--- > 1: 55:PF--- > 2: 56:PF--- > 3: 57:PF--- > 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G > 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI > 9: ff:P-O-L Override Board Name,00A0,Override Manuf,cape-bone-iio > > I then attempted to remove the overlay by > > /lib/firmware\> sudo sh -c "echo -9 > $SLOTS" > /lib/firmware\> cat $SLOTS > > but the terminal then freezes and never comes back. In another terminal > window, using ps aux | grep cat > I can see the process, but a kill -9 will not get rid of it. In the other > terminal window, I also attempted the > cat $SLOTS, and it froze up, as well. The only way of getting it back is > rebooting the system. In addition > the Adafruit_BBBIO.ADC does not have cleanup function. This behaviour does > not seem correct to me. > I also tried removing the overlay that set up the PRU output pins, and > that did seem to work correctly. > > Any ideas? Thanks. > Bit Pusher > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
