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PCI modem not recognized by the serial driver

Hi fellows,

Can someone tell me why this PCI based modem is not recognized by the
serial driver or, what does error code -28 mean?
It's a "3Com Corp, Modem Division 56K FaxModem Model 5610c" internal
board, flashed to their latest firmware. It was recognized a short while
ago by another FreeBSD system...

Thanks, Enoch.

uname -a:


Linux sat1 2.6.25-2-686 #1 SMP Fri Jul 18 17:46:56 UTC 2008 i686 GNU/Linux



Couldn't register serial port 0000:00:12.0: -28

lspci -v:


00:12.0 Serial controller: 3Com Corp, Modem Division 56K FaxModem Model
5610 (rev 01) (prog-if 02)

Subsystem: 3Com Corp, Modem Division Device 00d3
Flags: medium devsel, IRQ 5
I/O ports at fc18 [size=8]
Capabilities: [dc] Power Management version 2
Kernel driver in use: serial



PCI 12.0: 0700 Serial controller (16550)
[Created at pci.310]
UDI: /org/freedesktop/Hal/devices/pci_12b9_1008
Unique ID: CLZK.lJy1rsroej9
SysFS ID: /devices/pci0000:00/0000:00:12.0
SysFS BusID: 0000:00:12.0
Hardware Class: unknown
Model: "U.S. Robotics 56K FaxModem Model 5610"
Vendor: pci 0x12b9 "U.S. Robotics, Inc."
Device: pci 0x1008 "56K FaxModem Model 5610"
SubVendor: pci 0x12b9 "U.S. Robotics, Inc."
SubDevice: pci 0x00d3
Revision: 0x01
Driver: "serial"
I/O Ports: 0xfc18-0xfc1f (rw)
IRQ: 5 (3283 events)
Module Alias: "pci:v000012B9d00001008sv000012B9sd000000D3bc07sc00i02"
Config Status: cfg=new, avail=yes, need=no, active=unknown

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