Hello all! I am trying to use mmap for accessing GPIO's. Currently, I have got GPIO 0 and 1 working. When I try to access GPIO2 and 3, I get SIGBUS. Even when I devmem at the memories I get SIGBUS (output of devmem):
devmem 0x481AC130 /dev/mem opened. Memory mapped at address 0xb6f13000. Bus error I tried to access the CTRL register, which controls the clocking for GPIO modules, since according to this link https://groups.google.com/forum/#!searchin/beagleboard/sigbus/beagleboard/F-pALQ7dXQU/IkTA5w1K5T4J , using GPIO modules with no clock enabled would lead to SIGBUS, but even still I get SIGBUS. The setup I am using is the following: BeagleBone Black Rev. C rootfs: Debian wheezy (debian-7.7-console-armhf-2015-01-06) Kernel: 3.14.26-ti-r43 Thanks in advance. Paulo Sherring. -- 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.
