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Sad Modem doesn't work with versions 3.1.4 or later. 

Forum: PCMCIA Serial and Modem Issues
Date: 2000, Jan 14
From: Dave Caswell davec

I can't get my PCMCIA serial port to work with versions of pcmcia-cs
3.1.4 and beyond.  I haven't changed any configuration options, I just
install the new versions over the old, and 3.1.4 on don't work.  

When I start pppd, syslog gets an error:
Jan 13 16:24:01 krypton pppd[15407]: tcgetattr: Input/output error(5)
and pppd exits.

Looking back in my logs, I see that sometimes tty01 gets ports at
0x13f8, and sometimes at 0x02f8.  But the card works at both addresses
with the earlier versions of pcmcia_cs.

My computer started life as a Debian distribution, but is now running
kernel 2.1.14.  The computer itself is a Toshiba Satellite Pro 445 CDX. 


Linux krypton 2.2.14 #2 Wed Jan 5 14:48:34 MST 2000 i586 unknown

Socket 0: ActionTek Datalink Modem:
  product info: "PCMCIA  ", "33.6K Fax/Modem  ", "FM336LK  "
  manfid: 0x0175, 0x0000
  function: 2 (serial)
Socket 1:
  product info: "SMC", "EtherEZ Ethernet 8020", "V1.00", ""
  manfid: 0x0108, 0x0001
  function: 6 (network)



The log file lines that relate to PCMCIA are:


Jan 13 16:23:56 krypton kernel: Linux PCMCIA Card Services 3.1.4 
Jan 13 16:23:56 krypton kernel:   kernel build: 2.2.14 #2 Wed Jan 5 14:48:34 MST 2000 
Jan 13 16:23:56 krypton kernel:   options:  [pci] [cardbus] [pnp] 
Jan 13 16:23:56 krypton kernel: PnP: PNP BIOS installation structure at 0xc00f8e30 
Jan 13 16:23:56 krypton kernel: PnP: PNP BIOS version 1.0, entry at f0000:9c9d, dseg at 0 
Jan 13 16:23:56 krypton kernel: PCI routing table version 1.0 at 0xf97e0 
Jan 13 16:23:56 krypton kernel: Intel PCIC probe:  
Jan 13 16:23:56 krypton kernel:   Intel i82365sl B step ISA-to-PCMCIA at port 0x3e0 ofs 0x00, 2 sockets 
Jan 13 16:23:56 krypton kernel:     host opts [0]: none 
Jan 13 16:23:56 krypton kernel:     host opts [1]: none 
Jan 13 16:23:56 krypton kernel:     ISA irqs (scanned) = 3,4,10 polling interval = 1000 ms 
Jan 13 16:23:56 krypton cardmgr[15388]: starting, version is 3.1.4
Jan 13 16:23:56 krypton cardmgr[15388]: watching 2 sockets
Jan 13 16:23:56 krypton kernel: cs: IO port probe 0x1000-0x17ff: clean. 
Jan 13 16:23:56 krypton kernel: cs: IO port probe 0x0100-0x04ff: clean. 
Jan 13 16:23:56 krypton kernel: cs: IO port probe 0x0a00-0x0aff: clean. 
Jan 13 16:23:57 krypton cardmgr[15388]: initializing socket 0
Jan 13 16:23:57 krypton kernel: cs: memory probe 0x0d0000-0x0dffff: clean. 
Jan 13 16:23:57 krypton cardmgr[15388]: socket 0: Serial or Modem
Jan 13 16:23:57 krypton cardmgr[15388]: executing: 'insmod /lib/modules/2.2.14/pcmcia/serial_cs.o'
Jan 13 16:23:57 krypton kernel: tty01 at 0x13f8 (irq = 3) is a 16550A 
Jan 13 16:23:57 krypton cardmgr[15388]: executing: './serial start ttyS1'
Jan 13 16:24:01 krypton pppd[15407]: pppd 2.3.5 started by davec, uid 1000
Jan 13 16:24:01 krypton pppd[15407]: tcgetattr: Input/output error(5)
Jan 13 16:24:02 krypton pppd[15407]: Exit.
Jan 13 16:24:41 krypton cardmgr[15388]: executing: './serial check ttyS1'
Jan 13 16:24:42 krypton cardmgr[15388]: shutting down socket 0
Jan 13 16:24:42 krypton cardmgr[15388]: executing: './serial stop ttyS1'
Jan 13 16:24:42 krypton kernel: tty01 unloaded 
Jan 13 16:24:42 krypton cardmgr[15388]: executing: 'rmmod serial_cs'
Jan 13 16:24:42 krypton cardmgr[15388]: exiting


Thanks for your help.
    -davec

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1. Ok change in config.opts makes modem work again by Dave Caswell, 2000, Jan 15

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