Before running > iio_readdev ad7768-1

           CPU0       CPU1
 16:       8772       8971     GIC-0  29 Edge      twd
 17:          0          0     GIC-0 199 Level     timer0
 18:          0          0     GIC-0 208 Level     arm-pmu
 19:          0          0     GIC-0 209 Level     arm-pmu
 20:          0          0     GIC-0 136 Level     ffe01000.pdma
 21:        465          0     GIC-0 137 Level     ffe01000.pdma
 22:          0          0     GIC-0 138 Level     ffe01000.pdma
 23:          0          0     GIC-0 139 Level     ffe01000.pdma
 24:          0          0     GIC-0 140 Level     ffe01000.pdma
 25:          0          0     GIC-0 141 Level     ffe01000.pdma
 26:          0          0     GIC-0 142 Level     ffe01000.pdma
 27:          0          0     GIC-0 143 Level     ffe01000.pdma
 28:          0          0     GIC-0 207 Level     ff706000.fpgamgr
 29:          0          0     GIC-0 152 Level     eth0
 30:        123          0     GIC-0 190 Level     ffc04000.i2c
 31:          0          0     GIC-0 191 Level     ffc05000.i2c
 33:      34906          0     GIC-0 171 Level     dw-mci
 38:         96          0     GIC-0 194 Level     ttyS0
 40:          0          0     GIC-0 160 Level     ffb40000.usb, ffb40000.usb, dwc2_hsotg:usb1
 41:          0          0     GIC-0  75 Level     ff30a000.altera_spi
 42:          0          0     GIC-0  79 Level     ff280000.dma
 43:          0          0     GIC-0  76 Level     ff220000.rx-dma
 44:         13          0     GIC-0  77 Level     ff230000.spi_engine
IPI1:          0          0  Timer broadcast interrupts
IPI2:       4599      11586  Rescheduling interrupts
IPI3:        311       1944  Function call interrupts
IPI4:          0          0  CPU stop interrupts
IPI5:          0          0  IRQ work interrupts
IPI6:          0          0  completion interrupts
Err:          0


After running > iio_readdev ad7768-1


           CPU0       CPU1
 16:      20729      20423     GIC-0  29 Edge      twd
 17:          0          0     GIC-0 199 Level     timer0
 18:          0          0     GIC-0 208 Level     arm-pmu
 19:          0          0     GIC-0 209 Level     arm-pmu
 20:          0          0     GIC-0 136 Level     ffe01000.pdma
 21:        534          0     GIC-0 137 Level     ffe01000.pdma
 22:          0          0     GIC-0 138 Level     ffe01000.pdma
 23:          0          0     GIC-0 139 Level     ffe01000.pdma
 24:          0          0     GIC-0 140 Level     ffe01000.pdma
 25:          0          0     GIC-0 141 Level     ffe01000.pdma
 26:          0          0     GIC-0 142 Level     ffe01000.pdma
 27:          0          0     GIC-0 143 Level     ffe01000.pdma
 28:          0          0     GIC-0 207 Level     ff706000.fpgamgr
 29:          0          0     GIC-0 152 Level     eth0
 30:        189          0     GIC-0 190 Level     ffc04000.i2c
 31:          0          0     GIC-0 191 Level     ffc05000.i2c
 33:      40639          0     GIC-0 171 Level     dw-mci
 38:        154          0     GIC-0 194 Level     ttyS0
 40:          0          0     GIC-0 160 Level     ffb40000.usb, ffb40000.usb, dwc2_hsotg:usb1
 41:          0          0     GIC-0  75 Level     ff30a000.altera_spi
 42:          0          0     GIC-0  79 Level     ff280000.dma
 43:      13592          0     GIC-0  76 Level     ff220000.rx-dma
 44:         15          0     GIC-0  77 Level     ff230000.spi_engine
IPI1:          0          0  Timer broadcast interrupts
IPI2:       4756      11782  Rescheduling interrupts
IPI3:        311       1958  Function call interrupts
IPI4:          0          0  CPU stop interrupts
IPI5:          0          0  IRQ work interrupts
IPI6:          0          0  completion interrupts
Err:          0