The tiser module (see URL above) supports TI's serial cables for its TI-xx line of graphing calculators. Can you look into including this patch in gentoo-dev-sources? Reproducible: Always Steps to Reproduce:
According to the URL, its already included in the upstream kernel since 2.5.
Um... no: "III The home-made serial link & the BlackLink cables This module is finished and has been submitted to the Linux Kernel Mailing List for approval. I think that it will not be included in the kernel for some technical reasons." I hesitate to ask whether anybody actually checked to see if it was there.
Doesn't matter if it's in there or not, I'm not going to add it to the g-d-s tree, it needs to be submitted upstream. That way all users of Linux benifit, and it reduces the gentoo developer's maintaince.