[Bug 38568] 2.6.15-20 broke Prism GT WLAN Card

[rentar]

Public bug reported:

Affects: linux-source-2.6.15 (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed


Description:
I've been using Dapper Drake (installed from Flight CD 6, updated
regularly). My Netgear PCMCIA WLAN card worked ok, until I've updated
the kernel to linux-image-2.6.15-20 (before I used 2.6.15-19).

It didn't detect my network-card. dmesg revealed that it tried to load
the firmware "isl3886". This firmware is not present in -19 or -20. When
booting the same system with -19 it just logs that it successfully
loaded the firmware (not telling me which one).

Checking the changelog I found the following entry:
  * prism54: Via mjg59:
    - Load firmware before bring up interface.
    - Add prism54 softmac driver.

That sure looks like it's related.

lspci output:
0000:02:00.0 Network controller: Intersil Corporation Intersil ISL3890 [Prism GT/Prism Duette] (rev 01)
-- 
2.6.15-20 broke Prism GT WLAN Card
https://launchpad.net/malone/bugs/38568