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parport_serial is superseded.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.
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.
Only the parallel port on this board is identified.
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
Using 188.8.131.52 with the same configuration also works.
Created attachment 4781 [details]
Netmos combo card support
Better Netmos support
The patch from this bug is already applied in kernel 2.6.12, and I'm therefore
assuming that this issue is already fixed.