Thanks for the help Lisa. The card worked for about a year without one issue so I figured it was a hardware issue. I know one of my updates could have caused an issue. I haven't added any new hardware as well so I don't think it's not an IRQ issue.
>What is your distro and kernel version? Are your kernel patches up to
date?
I'm running two versions of Ubuntu with one being 10.04 for my home PC and 9.10 for my mythtv. Ultimately, I need the additional serial port in my mythtv PC. Kernels are 2.6.31-20-generic for 9.10 and 2.6.32-22-generic for 10.04. I tried the new serial card in both PCs and it doesn't work in either.
>What is the name and serial number of the card? Have you
researched drivers for your distro?
Info on my new card is very bleak as I've found nothing on the numbers given in lspci 5372:6872.
--- On Tue, 5/11/10, Lisa Kachold <
lisakachold@obnosis.com> wrote:
From: Lisa Kachold <
lisakachold@obnosis.com>
Subject: Re: Udev rules and built-in kernel modules
To: "Main PLUG discussion list" <
plug-discuss@lists.plug.phoenix.az.us>
Date: Tuesday, May 11, 2010, 2:54 AM
On Sun, May 9, 2010 at 3:50 PM, John <
jharitos@yahoo.com> wrote:
My computer setup needs two RS232 (serial) interfaces. I have the motherboard one and I also have a separate PCI card (4348:3253). The separate card has been going on the fritz since sometimes it just stops working. I bought another PCI serial card and I thought I could swap them out. Unfortunately, the new card (5372:6872) doesn't load the serial kernel driver like the old card. When I do a lspci -v for the old card it says kernel driver=serial and for the new card nothing is listed. I do an udevadm for both and the old one says serial and the new one says serial8250. Not sure why it doesn't say serial8250 when I do a lspci -v for the new card. Can you write a udev rule to load the correct built-in driver? Also, I did a cat on the modules.builtin and it shows serial_core.ko, 8250.ko, 8250_pnp.ko, 8250_pci.ko. I thought I would see a serial.ko and serial8250.ko as well. Any suggestions or am I out of luck on the serial card?
An intermittant PCI card issue could actually be an IRQ or DMA, UART issue. What are your bios settings? Have you verified that there is not a conflict?
There is a known UART bug (registered by Linus Torvalds) in Serial8250
fix-serial-8250-UART_BUG_TXEN-test:
What is your distro and kernel version? Are your kernel patches up to date?
What is the name and serial number of the card? Have you researched drivers for your distro?
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