Agere Systems L56xMF (Mars-1)

Chipset data:

Agere Systems formerly Lucent Technologies, press release
PCI bus controllerless (HCF) modem
Linux support
Agere/Lucent has not released an official Linux driver for the Mars-1 chipsets.
However, they do supply proprietary code in kit form to the volunteer developers.

Volunteer "Linmodem" project: LTModem Drivers for Linux
  L56xMF = DSP1645 (MQFP) + CSP1034AH (MQFP) [Desktop]
  L56xMF = DSP1645 (TQFP) + CSP1034AH (TQFP) [Laptop]

  1034AH    Line Codec               44-pin MQFP or  48-pin TQFP
  1645      Mars-1 DSP              160-pin MQFP or 176-pin TQFP
MFQP=Metric Quad Plat Package
TFQP=Thin Quad Flat Package
1034AH-J 1034C-J
Rob Clark