[Bug 620296] Re: Serialports behave strange using blocking IO

[Søren Holm]

In the ttyUSB0-case I can make the open-call not  block I can either
open it non-blocking - or open the port non-blocking in another
application (fx. cutecom) - leaving it open - while execution "cat
/dev/ttyUSB0"

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Serialports behave strange using blocking IO
https://bugs.launchpad.net/bugs/620296
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