minicom questions, need expert

[Rick Stevens]

Gene Heskett wrote:
> On Monday 12 May 2008, Gene Heskett wrote:
>> Greetings;
>>
>> I'm trying to make an antique computer talk to this linux box via a
>> usb<->serial adaptor and a long USB extension cord that has a hub kit in
>> the far end of it.
>>
>> When I plug in the cable to a 7 port extension hub here, dmesg reports:
>>
>> May 12 14:00:58 coyote kernel: [314986.418050] usb 1-1.3: new full speed USB
>> device using ehci_hcd and address 33 May 12 14:00:58 coyote kernel:
>> [314986.503819] usb 1-1.3: configuration #1 chosen from 1 choice May 12
>> 14:00:58 coyote kernel: [314986.504986] hub 1-1.3:1.0: USB hub found May 12
>> 14:00:58 coyote kernel: [314986.509657] hub 1-1.3:1.0: 4 ports detected May
>> 12 14:00:58 coyote kernel: [314986.818989] usb 1-1.3.4: new full speed USB
>> device using ehci_hcd and address 34 May 12 14:00:58 coyote kernel:
>> [314986.910261] usb 1-1.3.4: configuration #1 chosen from 1 choice May 12
>> 14:00:58 coyote kernel: [314986.910630] ftdi_sio 1-1.3.4:1.0: FTDI USB
>> Serial Device converter detected May 12 14:00:58 coyote kernel:
>> [314986.910684] ftdi_sio: Detected FT232RL May 12 14:00:58 coyote kernel:
>> [314986.910721] usb 1-1.3.4: FTDI USB Serial Device converter now attached
>> to ttyUSB1
>>
>> And I have sent several very long directory listings up the cable, but
>> nothing, not a single character is being output to the minicom screen.
>> I do not know if the minicom utility can reach out into that FT232RL to
>> tell it what the baud rate is or not, no clue.  If minicom can't do that,
>> then what linux utility can perform this initialization?
>>
>> Thanks all.
> 
> PEBKAC.  It turned out that the serial port params on the legacy machine were 
> a bit foobared.  And to minicom, it is now working well. A small copy/paste:
>  Directory of /dd/cmds   2008/05/12 14:42
> 
> Owner  Last modified   Attributes Sector Bytecount Name
> ----- ---------------- ---------- ------ --------- ----
>    0  2006/04/21 13:38  --e-rewr   1EBF8      1B00 asm
>    0  2006/04/21 13:38  --e-rewr   1EBFC       1FF attr
> 
> 
> I can put the fixes for that in the startup file for the coco3/nitros9 
> machine.
> 
> Now, I would like to be able to put something in my own rc.local that would 
> first tune that /dev/ttyUSB1 port for the proper params, then go away and 
> allow a "cat /dev/ttyUSB1 >/lp3" to be done, the idea being to use the linux 
> box to convert that text into something for a modern printer which doesn't 
> understand P.O.A. (Plain Old Ascii).  I need to be able to make paper copies 
> of program src, probably from the assembler.
> 
> Suggestions gleefully checked out, thanks all.

Forgot "man stty" as well.  Sorry!
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- Rick Stevens, Systems Engineer                       rps2 at nerd.com -
- Hosting Consulting, Inc.                                           -
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-                 All generalizations are false.                     -
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