Android UART1


#1

I am using UART0 (ttyHS0) in my Android app. I need another UART and want to make use of UART1 (ttyHSL0 if I am not mistaken) but it seems that it is already being used. How can I free up this UART so I can use it?


#2

Hi @koerant,

The UART1 (/dev/ttyHSL0) at pin11 and pin3 on the LS connector is used for the serial console purpose.

These are the information for using the serial console on DragonBoard 410C.
http://www.96boards.org/forums/topic/short-into-to-start-your-dragonboard-410c-with-serial-console/

The serial console is very handy to login to the DragonBoard 410C.

I have not tried it but it maybe able to free it up by removing the following string from kernel option.
“console=ttyHSL0,115200,n8”


#3

Hi Akira,

I wanted to avoid playing around in the kernel as I am still new to Android and Linux but this is as good a time as any to start learning. Thanks for the info.