Hi all, I'm using UART2 channel for serial communication in my bbb. I've modified following lines to enable uart2
##Example v4.1.x > #cape_disable=bone_capemgr.disable_partno= > #cape_enable=bone_capemgr.enable_partno=BB-UART2 When I checked the ttyO signals, I could observe following ports > root@beaglebone:~# ls -l /dev/ttyO* lrwxrwxrwx 1 root root 5 Jan 28 14:17 /dev/ttyO0 -> ttyS0 lrwxrwxrwx 1 root root 5 Jan 28 14:17 /dev/ttyO1 -> ttyS1 lrwxrwxrwx 1 root root 5 Jan 28 14:17 /dev/ttyO2 -> ttyS2 lrwxrwxrwx 1 root root 5 Jan 28 14:17 /dev/ttyO4 -> ttyS4 lrwxrwxrwx 1 root root 5 Jan 28 14:17 /dev/ttyO5 -> ttyS5 when I tested the uart in loopback mode, I couldn't receive any data at the channel. After that, I've configured the pin manually as follows config-pin P9_21 uart config-pin P9_22 uart And now, I'm getting data over uart. But, the ttyO signals are the same as follows. In my understanding, ttyO should be like this crw-rw---- 1 root tty 247, 0 Jan 1 2000 /dev/ttyO0 crw-rw---T 1 root dialout 247, 2 Jan 1 2000 /dev/ttyO2 Why it's showing this difference? And what's the actual method to enable uart? My BBB has kernel 4.9 and debian OS 9.3 -- 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/f8e6055e-852a-469c-b242-0d3d98d2d77a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
