Re: PCMCIA serial/modem problem
I may be all wet here, but are you sure it's ttyS1? If your laptop is
like mine, it probably has onboard serial that forces your PCMCIA modem
up to ttyS3. In fact, cardmgr is smart enough to symlink /dev/modem to
it for me, and un-symlink it when I pop the card out--really slick--I
always use /dev/modem.
Oliver Elphick wrote:
>
> I am trying to use a modem PCMCIA card with a laptop. The card is
> registered and configured, but the chosen interrupt (IRQ 3) does
> not appear in /proc/interrupts; I think this is the reason why I
> cannot access the card. It is impossible to open it either for
> reading or for writing. I have checked the permissions on the device
> /dev/ttyS1 and checked that its major and minor numbers are correct.
>
> (This card has worked on this laptop in the past, though with a different
> kernel version.)
>
> Can anyone suggest what to do to make this work, please?
>
> kernel: 2.2.15
> Card: SmartLink PCMCIA Fax modem from Archtek Telecom
>
> Socket 0:
> product info: "CIRRUS LOGIC 56K MODEM", "CL-MD56XX", "5.41"
> manfid: 0x014e, 0x0088
> function: 2 (serial)
>
> rover:/home/olly# cardctl config
> Socket 0:
> Vcc 5.0V Vpp1 0.0V Vpp2 0.0V
> interface type is "memory and I/O"
> irq 3 [exclusive] [level]
> Speaker output is enabled
> function 0:
> config base 0x0100
> option 0x60 status 0x08 ext 0x00
> io 0x13f8-0x13ff [8bit]
>
> rover:/home/olly# setserial -a /dev/ttyS1
> /dev/ttyS1, Line 1, UART: 16550A, Port: 0x13f8, IRQ: 3
> Baud_base: 115200, close_delay: 50, divisor: 0
> closing_wait: 3000
> Flags: spd_normal skip_test
>
> rover:/home/olly# cat /proc/interrupts
> CPU0
> 0: 7599348 XT-PIC timer
> 1: 4220 XT-PIC keyboard
> 2: 0 XT-PIC cascade
> 8: 1 XT-PIC rtc
> 12: 3692 XT-PIC PS/2 Mouse
> 13: 0 XT-PIC fpu
> 14: 308980 XT-PIC ide0
> 15: 27 XT-PIC ide1
> NMI: 0
>
> rover:/home/olly# cat /proc/ioports
> 0000-001f : dma1
> 0020-003f : pic1
> 0040-005f : timer
> 0060-006f : keyboard
> 0070-007f : rtc
> 0080-008f : dma page reg
> 00a0-00bf : pic2
> 00c0-00df : dma2
> 00f0-00ff : fpu
> 0170-0177 : ide1
> 01f0-01f7 : ide0
> 0376-0376 : ide1
> 0378-037a : parport0
> 03c0-03df : vga+
> 03f6-03f6 : ide0
> 03f8-03ff : serial(set)
> 13f8-13ff : serial_cs
> 4000-4007 : ide0
> 4008-400f : ide1
>
> rover:/home/olly# cu -l ttyS1
> cu: open (/dev/ttyS1): No such device
> cu: open (/dev/ttyS1): No such device
> cu: ttyS1: Line in use
>
> --
> Oliver Elphick Oliver.Elphick@lfix.co.uk
> Isle of Wight http://www.lfix.co.uk/oliver
> PGP: 1024R/32B8FAA1: 97 EA 1D 47 72 3F 28 47 6B 7E 39 CC 56 E4 C1 47
> GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C
> ========================================
> "Lo, children are an heritage of the LORD; and the
> fruit of the womb is his reward." Psalms 127:3
>
> --
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