PCMCIA serial/modem problem
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
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