[4260] in RedHat Linux List
Re: internal modem on thinkpad701?? -- need help
daemon@ATHENA.MIT.EDU (Glenn W. Bach)
Wed Nov 13 16:56:28 1996
Date: Wed, 13 Nov 1996 14:06:49 -0800 (PST)
From: "Glenn W. Bach" <glenn@dodgson.wonderland.caltech.edu>
To: redhat-list@redhat.com
In-Reply-To: <199611131813.KAA23850@sockeye.fishnet.caltech.edu>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
If the 701 is any thing like the 760CD then the modem is really just a
microprocessor that is programmed at boot time to be a modem. This is done
with a program run in the config.sys/autoexec.bat sequence. I wonder if
you could run it from DOSEMU. I don't know.
Glenn W. Bach
PMA Network/Systems Manager
California Institute of Technology
On Wed, 13 Nov 1996, John Salmon wrote:
>
> Hi,
>
> I've got an IBM Thinkpad701cs, running Rembrandt (with a handful of
> upgraded rpms). I am trying to use the internal modem. As far as I
> can tell, everything is in order. The bios tells me that the modem
> is on COM3, and setserial reports the same PORT and IRQ for /dev/cua3
> as the BIOS reports for COM3.
>
> Unfortunately, minicom doesn't do anything at all, and worse, doesn't tell
> me why. I.e., nothing I type gets echo'ed, and there are no reported errors.
>
> Just for grins, I tried compiling ckermit from source -- hoping I might
> at least get an error message. Sure enough, ckermit reports that /dev/cua3
> is "not a terminal device". A little digging reveals that 'isatty()'
> returns false for a file descriptor pointing to /dev/cua3. Strangely,
> it returns true for /dev/cua0, so whatever is wrong is affecting cua3 only.
>
> Any suggestions would be appreciated. FWIW, here's the output of
> 'stat' and 'setserial'.
>
> Thanks,
> John
>
> [root@chinook /root]# stat /dev/cua3
> stat /dev/cua3
> File: "/dev/cua3"
> Size: 0 Filetype: Character Device
> Mode: (0660/crw-rw----) Uid: ( 0/ root) Gid: ( 14/ uucp)
> Device: 3,2 Inode: 4135 Links: 1 Device type: 5,67
> Access: Mon Dec 31 20:00:00 1979(06162.03:15:15)
> Modify: Mon Dec 31 20:00:00 1979(06162.03:15:15)
> Change: Tue Nov 12 19:38:09 1996(00001.03:37:06)
> [root@chinook /root]# setserial /dev/cua3
> setserial /dev/cua3
> /dev/cua3, UART: 16550A, Port: 0x02e8, IRQ: 3
> [root@chinook /root]#
>
>
> --
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