The issue is name collision.. That dtbo is already built into the kernel. Also see
http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Loading_custom_capes And search this list as we gone over it multiple times. On Mar 22, 2015 8:14 PM, "Colin Bester" <bester.co...@gmail.com> wrote: > Adding to this; > > If I remove the compiled dtbo file from /lib/firmware directory and > power-off/power-on the board running manual insert "echo BB-BONE-AUDI-02 > > /sys/devices/bone_capemgr.9/slots" gives error write error: File Exists and > dmesg shows BB-BONE-AUDI-02 conflict gpio1_19 (#3:BB-BONE-LCD4-01) where > I expect it to throw error stating No such file or directory. I validated > expected error by trying > > echo BB-BONE-AUDI-03 > /sys/devices/bone_capemgr.9/slots which does give > expected error of "write error: No such file or directory" > > On Sunday, March 22, 2015 at 9:57:06 PM UTC-5, Colin Bester wrote: >> >> In adding Audio Cape (BB-BONE-AUDI-02-00A0) to beaglebone black which >> also has LCD4 mounted I receive a GPIO 19 conflict error. >> >> Looking at the dts file I see it has specified exclusive use for gpio1_18 >> and gpio1_19. In the past I circumvented this error by commenting these two >> pins out of the exclusive list and all works fine (doesn't appear that >> these pwm pins are used by audio cape) >> >> Now I upgraded debian to 3.8.13-bone70 and in performing upgrade and >> setting up new board I forgot to exclude these two pins from dts file >> before compiling, only to see the conflict error again. >> >> My problem is that no matter what I do, (edit out pins, compile and copy >> new dtbo to /lib/firmware), I keep getting the same conflict error. If I >> edit the dts file and change the part number to something else and load it >> manually it works so I know the change and compile is valid. >> >> It appears that my original compiled dtbo file is somehow being >> cached/persisted through power off/power on and my updated dtbo is not >> being 'seen'. >> >> I'd appreciate any suggestions on next steps. >> >> Colin >> >> -- > 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/d/optout. > -- 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/d/optout.
