Can't see /dev/ttyO*

[djhanz]

Hello. I've started using Archlinux on my beaglebone, instead of Debian. And when I go to /dev, i don't see any UARTS. In Debian, UARTS were named ttyO1 - ttyO5

I am using latest kernel linux-am33x 3.19.1-1.

Thanks for any suggestions.

[sphonala]

UART is not enabled bydefault you have to enable it
type following command enable UART on BBB using dtoverlay

for UART 1
echo BB-UART1 > /sys/devices/bone_capemgr.9/slots
like same for 2,3,4,5

OR if u want to enable this @ board up (boot) time
u can simply add (enable dt overlay) following line to uEnv.txt file in ur boot partition.
optargs=quiet capemgr.enable_partno=BB-UART1
like same for 2,3,4,5

follow link for more info
http://hipstercircuits.com/enable-seria ... one-black/