Bug 4334

Distribution: Any
Hardware Environment: NetMos 9835 or 9735
Software Environment: Any
Problem Description: In kernel 2.6.9, a patch was added to parport_pc to support
the parallel port on netmos 9835 and 9735 chipsets, which are found on combo
parallel/serial pci cards. Support for these chips already existed in
parport_serial prior to this. Since parport_serial depends on parport_pc,
parport_pc always gets loaded first, with limited (parallel port only) support
for these cards, and the complete (parallel+serial) functionality in
parport_serial is superseded. The serial functionality of these cards does not
work in either 2.6.9 or 2.6.10.

Reproducible: Always
Steps to Reproduce:
1. Obtain NetMos 9835 or 9735 board.
2. Compile linux 2.6.9 or 2.6.10 with support for parport_serial enabled
(built-in or module, either way works).
3. Boot with this kernel.

Actual Results:  
Only the parallel port on this board is identified.

Expected Results:  
Both the parallel port and the serial ports (there are two on the 9835, which I
have) should be identified.

I have read of other people having an identical problem, with the same boards on
the same kernel version.
Removing support in parport_pc for these netmos boards produces the required
functionality.
Using 2.6.8.1 with the same configuration also works.