Here is a patch to drive the serial card RSA-DV II/S from IO DATA, in its native speed. This patch is (bzip2'ed) unified diff from sources in Linux 2.2.16.
First of all, apply the patch to the kernel source tree, and then re-build your kernel in such a way that serial.c is compiled as a module.
To activate added functionalities, you need to specify the port to which the card attached, when you load the module. For instance, you have to issue a command like
modprobe serial probe_rsa=0x288
Any questions or comments about this page are greatly appreciated.
Almost all contents in this site are written by Kiyokazu SUTO (i.e. me) unless especially noted. I want to put all of them into the PUBLIC DOMAIN, even though some lawyers mention that it is impossible in my country.