Thanks to zmatt on the IRC channel this got resolved. The problem is that the am335x-boneblack-overlay.dtb does not define the symbol "clk_mcasp0".
So, I had to use the am335x-boneblack-audio.dtb overlay instead. On Monday, June 26, 2017 at 1:31:27 AM UTC-7, Andrew P. Lentvorski wrote: > > > I'm trying to get my own audio cape to load so I thought I would start by > loading the built-in audio cape configuration and then copy that to make my > own. However, I can't seem to beat the cape manager into submission. I > can load the BB-UART1-00A0 overlay, but I can't load the > BB-BONE-AUDI-02-00A0: > > root@beaglebone:/sys/devices/platform# echo BB-UART1 > >/sys/devices/platform/bone_capemgr/slots > root@beaglebone:/sys/devices/platform# echo BB-BONE-AUDI > >/sys/devices/platform/bone_capemgr/slots > -bash: echo: write error: No such file or directory > root@beaglebone:/sys/devices/platform# echo BB-BONE-AUDI-02 > >/sys/devices/platform/bone_capemgr/slots > -bash: echo: write error: Invalid argument > root@beaglebone:/sys/devices/platform# cat > /sys/devices/platform/bone_capemgr/slots > 0: PF---- -1 > 1: PF---- -1 > 2: PF---- -1 > 3: PF---- -1 > 14: P-O-L- 0 Override Board Name,00A0,Override Manuf,BB-UART1 > > > > Any suggestions as to what I'm doing wrong? > > Thanks. > > root@beaglebone:/sys/devices/platform# uname -a > Linux beaglebone 4.4.54-ti-r93 #1 SMP Fri Mar 17 13:08:22 UTC 2017 armv7l > GNU/Linux > > > > > > > -- 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/4f9aebfe-74d1-49cf-9982-7512c9bd2bae%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.