Re: [Gpsbabel-misc] Problems with GPS II

[Robert L. <rob...@us...>]

What you're describing doesn't look like a Garmin problem nearly as much
as a bad serial driver. Is this some USB/Serial adapter or multiport
board or such?

The problem with O_NDELAY is that it lets writes return when they're
only partially satisfied and exactly none of our code is prepared to
handle that - that's why it was removed.

write(X, buf, 1024)
could write the first 32 bytes and return 32 - we never try to send
the remainder.

> I tracked the problem to a hang in the Serial Open function, and found a
> comment there about the O_NOCTTY and O_NDELAY flags having been removed
> from the open call. I put them back in, recompiled and things worked
> again!
> 
> Hope this helps someone else...
> 
> John
> 
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