Hi follow William's blog it provides some insights for the 4.x kernels ... very useful http://www.embeddedhobbyist.com/2015/09/beaglebone-black-updating-device-tree-files/ however..... there are some points I could not figure out with SPIDEV0 https://groups.google.com/forum/#!category-topic/beagleboard/gOynYr8fgns
good luck On Thursday, 25 February 2016 09:59:58 UTC+1, Thomas Andrews wrote: > > I have just upgraded to a 4.5.0-rc4+ kernel that I built, and I'm having > trouble getting SPI0 and UARTs 1 & 4 working again. I built the kernel > with CONFIG_BONE_CAPEMGR=y > > cat /sys/devices/platform/bone_capemgr/slots > 0: PF---- -1 > 1: PF---- -1 > 2: PF---- -1 > 3: PF---- -1 > > Here is my problem: > echo 'BB-SPIDEV0' > /sys/devices/platform/bone_capemgr/slots > -bash: echo: write error: Invalid argument > > What am I missing? Is there perhaps some kernel build option that I've > missed? > > This was an upgrade from 3.8.13-bone47, so I'm somewhat out of date.. > > Thanks! > Thomas > -- 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.
