My machine has a mini PCIe card on which are 2 off RS485 ports. Here is the o/p from uname -a

Linux fujitsu-debian-shcp1 3.2.0-4-amd64 #1 SMP Debian 3.2.57-3 x86_64 GNU/Linux

Here is the o/p from lspci

00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Root Complex [1022:1536]
00:01.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Device [1002:9835]
00:01.1 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI Device [1002:9840]
00:02.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 0 [1022:1538]
00:02.2 PCI bridge [0604]: Advanced Micro Devices [AMD] Family 16h Processor Functions 5:1 [1022:1439]
00:02.3 PCI bridge [0604]: Advanced Micro Devices [AMD] Family 16h Processor Functions 5:1 [1022:1439]
00:10.0 USB controller [0c03]: Advanced Micro Devices [AMD] FCH USB XHCI Controller [1022:7814] (rev 01)
00:11.0 SATA controller [0106]: Advanced Micro Devices [AMD] FCH SATA Controller [AHCI mode] [1022:7801] (rev 40)
00:12.0 USB controller [0c03]: Advanced Micro Devices [AMD] FCH USB OHCI Controller [1022:7807] (rev 39)
00:12.2 USB controller [0c03]: Advanced Micro Devices [AMD] FCH USB EHCI Controller [1022:7808] (rev 39)
00:13.0 USB controller [0c03]: Advanced Micro Devices [AMD] FCH USB OHCI Controller [1022:7807] (rev 39)
00:13.2 USB controller [0c03]: Advanced Micro Devices [AMD] FCH USB EHCI Controller [1022:7808] (rev 39)
00:14.0 SMBus [0c05]: Advanced Micro Devices [AMD] FCH SMBus Controller [1022:780b] (rev 3a)
00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] FCH Azalia Controller [1022:780d] (rev 02)
00:14.3 ISA bridge [0601]: Advanced Micro Devices [AMD] FCH LPC Bridge [1022:780e] (rev 11)
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 0 [1022:1530]
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 1 [1022:1531]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 2 [1022:1532]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 3 [1022:1533]
00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 4 [1022:1534]
00:18.5 Host bridge [0600]: Advanced Micro Devices [AMD] Family 16h Processor Function 5 [1022:1535]
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 0c)
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 0c)

I don't think the mini-PCIe card has been recognised. I've contacted the supplier of the machine, and he suggested downloading a PCI driver from fujitsu, which I did. However I can't build it, the make falls over with:
"linux/smp_lock.h: No such file or directory"

Given that I have a 3.2 kernel, and that the name of the directory supplied from fujitsu is:
"mPCI3-AddonLinux2.6"
I conclude that this 'ere driver needs an update to make it work with a 3.2 kernel. I've asked the machine suppliers, who can't help, I've done lots of googling and drawn a blank.

I can't be the only person who want a driver like this to work with a 3.2 kernel!

Does anyone know where to look?

Do you have the Linux headers installed?

The big kernel lock was removed in 2.6.39.
I don't think any driver will work if the device doesn't show up on the PCI bus. How would the driver find it? lspci should still list it as "Unknown device".

1 members found this post helpful.

Quite right. I'll have to solve that one before doing angthing else