2.4.0 kernel and the Toshiba 1715XCDS

[Douglas Bates <bates@stat.wisc.edu>]

This is not strictly a Debian question but it does relate to a
computer running Debian 2.3.

The computer is a Toshiba 1715XCDS laptop.  I have been using the
2.4.0 testing and prerelease kernels on it and have been very pleased
with the support for PCMCIA built into the 2.4.x series kernels.
Today I compiled and installed 2.4.0.

I have not been able to get sound support working in the kernel.  If I
check /proc/pci I find that it has

  Bus  0, device   8, function  0:
    Multimedia audio controller: Cirrus Logic Crystal CS4281 PCI Audio (rev 1).
      IRQ 5.
      Master Capable.  Latency=64.  Min Gnt=4.Max Lat=24.
      Non-prefetchable 32 bit memory at 0xfc010000 [0xfc010fff].
      Non-prefetchable 32 bit memory at 0xfc000000 [0xfc00ffff].

so I configure the kernel with cd4281 support.  However, the boot
log shows that the cd4281 driver is not being successfully
initialized.

 Linux version 2.4.0 (root@puccini) (gcc version 2.95.2 20000220 (Debian GNU/Linux)) #1 Fri Jan 5 13:26:53 CST 2001
 ...
 BIOS Vendor: TOSHIBA
 BIOS Version: 1.04A.ROM
 BIOS Release: 09/18/00
 System Vendor: TOSHIBA.
 Product Name: Satellite 1715XCDS.
 Version PS171U-11K93H.
 ...
 Linux agpgart interface v0.99 (c) Jeff Hartmann
 agpgart: Maximum main memory to use for agp memory: 27M
 agpgart: Detected Intel 440BX chipset
 agpgart: AGP aperture is 64M @ 0xe0000000
 [drm] AGP 0.99 on Intel 440BX @ 0xe0000000 64MB
 [drm] Initialized r128 2.1.2 20001215 on minor 63
 cs4281: version v1.01.32 time 13:29:20 Jan  5 2001
 cs4281: cs4281_hw_init() failed. Skipping part.
 ...

Suggestions?