[PLUG] Multiple USB Ports Active On One Connection

Quentin Hartman qhartman at gmail.com
Fri Jun 22 22:53:22 UTC 2007


On 6/22/07, Rich Shepard <rshepard at appl-ecosys.com> wrote:
>
> On Fri, 22 Jun 2007, Quentin Hartman wrote:
>
> > IIRC, this is normal for palm-like deivces. My old Clie did this, and so
> > did my visor, and my newer clie. I saw an explanation a long time ago,
> but
> > I don't remember exactly what it was. I'm surprised that David D didn't
> > seem to know about it. I just tried both of them when syncing, and one
> or
> > the other would work. Sometimes they would flip-flop, requiring a
> reconfig
> > of my client.
>
> Quentin,
>
>    Perhaps it's normal with the newer Palms, but not with the older ones.


I don't know about that, my visor that behaves this way was made in the late
90's or early 00's, one of the first non-palm branded machines to come out,
IIRC. It uses AAA batteries, none of this lithium-ion monkey business.
Bottom line, it's pretty old.

But I digress...

   I made the link /dev/pilot to point to /dev/tts/USB1, and it almost
> worked
> (same with /dev/tts/USB0). What I see now is:
>
> dlp_ReadSysInfo error
> Exiting with status SYNC_ERROR_PI_CONNECT
>
> which looks like a permissions error. However, /dev/pilot is owned by
> me as a user, and so are /dev/tts/USBn. Any other insight?


Not sure... (asking google)

http://www.pilot-link.org/node/175
http://ubuntuforums.org/showthread.php?t=240449

Both sound related, and the second talks specifically about a Treo.

http://gentoo-wiki.com/HOWTO_USB_sync_for_Palm_PDAs_with_Evolution_2.0_and_udev

Might also have some useful information. What distro are you using? It
doesn't matter too much, except that it will differentiate between ones that
use udev or devfs. Depending on that, the process will be different.

Looks like this error is seen pretty often with Palm devices. Now that I
think about it, I remember having to go through a similar process to the one
described in the first link with my first Clie to get it to sync. For what
it's worth, I've never bothered with the /dev/pilot or /palm links, I've
always used the ttyUSB* devices directly.

Incidentally, I also found a link explaining the two connections. One of
them is for hotsync stuff, and the other if for "other capabilities", like
exporting filesystems, or making PPP connections through the connected
computer.

-- 
-Regards-

-Quentin Hartman-



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