Looks like you need to use the HWUART:
Also – have you tried just crossing RTS/CTS? Perhaps you’re device doesn’t really need it depending on what you’re doing.
Michael D. Black
[mailto:firstname.lastname@example.org] On Behalf Of Mayur Shah
Sent: Friday, November 09, 2007 10:08 PM
To: General mailing list for gumstix users.
Subject: [Gumstix-users] Need help on RTS CTS enablement on verdex,console-vx
We have a setup of verdex that uses verdex-xm4bt, console-vx and netwifi-microSD
We use ethernet, wifi and serial port on the verdex. We are unable to successfully use serial communication with an external device from /dev/ttyS1 on console-vx. Our serial communication uses RTS CTS handshake.
Based on our program , we can see that RTS CTS is not enabled out of the box on verdex console-vx. We dont need to use Bluetooth. Our gumstix build number is 1541.
We need to find out how to enable RTS CTS on this setup.
Any help will be highly appreciated, we are stuck.