Palm Hotsync and usbserial: New Findings

Uwe Bonnes bon at
Thu Jul 7 03:51:51 CDT 2005

>>>>> "James" == James Liggett <jrliggett at> writes:

    James> Hello all, I have been working on getting Hotsync to sync to a
    James> USB cradle using usbserial. I did some research, and as it turns
    James> out, the functions that wine uses to poll normal serial ports
    James> (like ioctl and tcgetattr) don't like usbserial devices very
    James> much. In fact, when I query my USB cradle using setserial, it
    James> gives me the same "Invalid Arguement" error that GetCommState
    James> does. Additionally, pilot-link doesn't even use these functions
    James> to communicate with a usbserial connected palm. The question now
    James> is, can we get tcgetattr to play nice with usbserial?

What USB to serial adapter is used? The usbserial Atmel AVRIce uses a FTDI
FT232 which is well supported. It works quite well, with the serial
related patches I sent to the list( but some of them not yet in CVS).  The
problem you suspect is likely more usb related.


Uwe Bonnes                bon at

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
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