I have the same problem with Linksys PCMLM56 card with kernel 2.2.14
PCMCIA Multifunction Card Issues
Modem not working in Linksys PCMLM56 and 2.2.14 (Ivan Kocher)
Date: 2000, Apr 11
From: Jaiyong Lee jaiyong_lee
I installed RedHat 6.2 (kernel v.2.2.14) which is released this week, on my new notebook. It does recognize the card ( one beep at the beginning and Rx & Tx LED blinking once after ). But, when I tried the modem for PPP, it never works. Is there a work around for this problem. By the way, I tried 'setserial /dev/modem irq 0', but it fails, too.
I don't think it is the same problem, but need more info by David Hinds, 2000, Apr 11
Here is more info (kernel message) by Jaiyong Lee, 2000, Apr 12
Maybe an IO port configuration problem by David Hinds, 2000, Apr 12
Problem solved !! Many thanks to you. by Jaiyong Lee, 2000, Apr 14
similar problem with linksys modem+ethernet card, and a simple fix by Aaron Barth, 2000, Jul 17
to: "I have the same problem with Linksys PCMLM56 card with kernel 2.2.14"