Messages in this thread | | | Date | Fri, 07 Mar 2003 15:17:51 -0800 | From | Bryan Whitehead <> | Subject | Re: devfs + PCI serial card = no extra serial ports |
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> What serial driver initialization messages do you get from dmesg? > Is the "MANY_PORTS" flag present in the list of enabled options? > Which distribution and rev level are you using?
My boot messages say this: Serial driver version 5.05c (2001-07-08) with HUB-6 MANY_PORTS MULTIPORT SHARE_IRQ SERIAL_PCI ISAPNP enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A
It only sets up my built-into-motherboard serial ports. The add on card gets ignored.
I would have thought with SERIAL_PCI enabled I would have no problem. But it doesn't seem to be so.
doing the quick/dirty setserial stuff with my own mknod's work. but it's a big "messy". I'd at least like to get this fixed so next kernel version I don't need to do a quick hack todo something as simple as getting a serial port working.
I can post my entire dmesg if needed allong with my complete /proc/pci. I'm also willing to play with patches. (if this is already fixed in a later kernel than 2.4.19 I'd be willing to give it a go).
> Ed > > -----Original Message----- > From: Bryan Whitehead [mailto:driver@jpl.nasa.gov] > Sent: Friday, March 07, 2003 2:55 PM > To: linux-kernel@vger.kernel.org > Cc: linux-newbie@vger.kernel.org > Subject: Re: devfs + PCI serial card = no extra serial ports > > > > BTW, this is with 2.4.19 (kernel shipped with distro).... I'm willing to > test any patches / rebuild kernel to get this working..... > > > Bryan Whitehead wrote: > >>It seems devfsd has an annoying "feature". I bought a PCI card to get a >>couple (2) more serial ports. The kernel doesn't seem to set up the >>serial ports at boot, so devfs never creates an entry. However, post >>boot, since there is no entries, I cannot configure the serial ports >>with setserial. So basically devfsd = no PCI based serial add on? >> >>03:05.0 Serial controller: NetMos Technology 222N-2 I/O Card (2S+1P) >>(rev 01) (prog-if 02 [16550]) >> Subsystem: LSI Logic / Symbios Logic (formerly NCR): Unknown device >>0002 >> Flags: medium devsel, IRQ 17 >> I/O ports at ecf8 [size=8] >> I/O ports at ece8 [size=8] >> I/O ports at ecd8 [size=8] >> I/O ports at ecc8 [size=8] >> I/O ports at ecb8 [size=8] >> I/O ports at eca0 [size=16] >> >> >>mknod ttyS2 c 4 66 >>mknod ttyS3 c 4 67 >>setserial ttyS2 port 0xecf8 UART 16550A irq 17 Baud_base 9600 >>setserial ttyS3 port 0xece8 UART 16550A irq 17 Baud_base 9600 >> >>I hoped after "setting up" the serial ports with setserial some magic >>would happen and they would apear in /dev/tts... but I was wrong. >> >>gets me working serial ports... but it's not in /dev... :O >> >>Am I just screwed? >> >>If so, what would be a good add on PCI based solution for more serial >>ports that WORKS with devfsd? (I don't want to disable devfs as this >>opens up a different set of problems) >> >>Thanks for any replay! >> > > >
-- Bryan Whitehead SysAdmin - JPL - Interferometry Systems and Technology Phone: 818 354 2903 driver@jpl.nasa.gov
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