[Bug 62310] Re: Gpilotd does not reply to all sync request

[Matt Davey]

I've seen this a few times, and what appears to be happening is that
/dev/pilot starts pointing to the 'wrong' ttyUSB device.  When this
happens you'll see the "pi_accept_to returned -202" messages (-202 means
'timeout' in pilot-link speak).

If this is a problem for you, you have two options:
1. choose /dev/ttyUSB0 or /dev/ttyUSB1, as appropriate for your pda, instead of /dev/pilot.
2. If you're running pilot-link-0.12.x, migrate to libusb syncing instead of usbserial.

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Gpilotd does not reply to all sync request 
https://launchpad.net/bugs/62310