Hi , We have purchased a few Mentorel BeagleBone uSomIQ development kits. They have the 3.8.13-bone72 kernel on there.
Due to some USB issues we have with this version of the kernel, I was able to recompile the v4.5.7-bone4 using Robert Nelson's instructions ( https://eewiki.net/display/linuxonarm/BeagleBone+Black) and make a new SD card image. I was able to boot our mentorel dev kit off the image on this SD card. Unfortunately, I cannot get the UARTs, i2c and some digital IO to work on this modified setup. (NOTE: with 3.8.13-bone72 kernel these buses work fine). So to enable the overlays here is what I do on the newly compiled image. 1. Execute the following lines... export PINS=/sys/kernel/debug/pinctrl/44e10800.pinmux/pins export SLOTS=/sys/devices/platform/bone_capemgr/slots sudo sh -c "echo BB-ADC > $SLOTS" sudo sh -c "echo BB-I2C1 > $SLOTS" sudo sh -c "echo BB-UART1 > $SLOTS" sudo sh -c "echo BB-UART2 > $SLOTS" sudo sh -c "echo BB-UART4 > $SLOTS" 2. cat /sys/devices/platform/bone_capemgr/slots 0: PF---- -1 1: PF---- -1 2: PF---- -1 3: PF---- -1 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,BB-ADC 5: P-O-L- 1 Override Board Name,00A0,Override Manuf,BB-I2C1 6: P-O-L- 2 Override Board Name,00A0,Override Manuf,BB-UART1 7: P-O-L- 3 Override Board Name,00A0,Override Manuf,BB-UART2 so it appears the overlays got enabled ok. But, the /dev folder does not have all the files I was expecting. I don't see a iio:devices0, ttyO1, ttyO2 or ttyO4. And when I try to write to the i2c device I get errors that I don't see when I use the original sw that came with the board. It seems like I might have some incompatibilities in the components in the image I created. Please suggest any solution -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAP3%2BTEoTsHrGnaoyFPRAWcw%3DHoJW_f3yEHkWLJCvO%2B178KDXXQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
