failures connecting to Palm V via USB-to-serial adapter

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  • Joe Wells sllewbj at blueyonder.co.uk
    Wed Jan 3 09:55:54 EST 2007

     

    Matt Davey <mcdavey at mrao.cam.ac.uk> writes:
    
    > On Sun, 2006-12-24 at 19:25 +0000, Joe Wells wrote:
    >> I'm completely failing to get a working connection to a Palm V via a
    >> USB-to-serial adapter.  Can anyone help me?
    > [,,,]
    >> After this, I see "Identifying user" on the Palm V.  Then there is a
    >> delay.  Then I see this output from pilot-dlpsh:
    >> 
    >>    Error read system info on /dev/ttyUSB0
    >> 
    > [...]
    >> My USB-to-serial adapter is by Keyspan.  After I plug it in, I can
    >> learn from "lsusb" that the product ID is 0x0104 and this is
    >> associated with the string "PDA [prerenum]".  These are the kernel log
    >> messages I see when I plug in my USB-to-serial adapter:
    [...]
    >> I don't know why it always seems to connect, disconnect, and then
    >> reconnect, but this happens every time I unplug it and plug it back
    >> in.  When using this USB-to-serial adapter, the "visor" kernel module
    >> does *not* get loaded.
    >
    > The visor module recognises a compiled-in list of usb vendor/product ID
    > pairs.  You can load the module and supply your vendor/product ID using
    > a command line like:
    >   modprobe visor  vendor=0x830   product=0x0061
    >
    > I don't know whether this is the source of your problem, but it's worth
    > trying.
    
    Thanks very much for your remark!
    
    I'm confused by your suggestion.  I thought the visor module was for
    PDAs that have a USB interface.  My Palm V is old enough that it has
    only a serial port.  The fact that I am providing my computer with a
    serial port by a USB-to-serial adapter should (in some idealized
    theoretical world!) be completely transparent, and I only mention the
    details because maybe something is going wrong with my USB-to-serial
    adapter.
    
    Is there some way the visor module can possibly help in this case?
    
    -- 
    Thanks,
    
    Joe
    
    

     

     

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