http://www.pspproject.net/dev/debugTextInfo.html
This is code for TEXT input from the PSPDEBUGSCREEN. Fairly basic. Easy to use:
UP/DOWN -> Change Letter
RTRIGGER -> Insert Space
LTRIGGER -> Delete
CROSS(X) -> Insert Current Letter
TRIANGLE -> Cancle
SQUARE -> Accept
Get the code an a sample as a part of PSPProjects Open Souce Libary