Tu znajdziesz łatki do programu linux-2.4 (linux kernel - 2.4 series).
http://www.kernel.org/

łatka: advantech-icomm-serial.diff

for 2.4: Add support for Advantech ICOMM cards - PCI multiport serial RS-232/422/485 boards
Extracted from Advantech's "driver" - a modified version of serial.c from some early 2.4.X kernel