Serial Port Plug/Interface issue with Ubuntu-core 16.04 (#2557)

Oliver Grawert ogra at
Wed Jan 11 18:37:20 UTC 2017

Am Mittwoch, den 11.01.2017, 17:59 +0000 schrieb Mritunjai Singh:
> Hi All,
> Kindly refer to:
> We are trying to get a head start on Core Snappy working with our RF
> Mesh network card. It connects over serial and needs to be available
> at boot. We first tried this using snap approach but due to missing
> hotplugging serial-interface in current(latest) version of snapcraft,
> serial i/o requests are being denied even if the snap has the
> permission to use serial port.
> We have been suggested the gadget snap approach in order to expose
> /dev/ttyS0 to the serial port interface for tunnccd snap to access
> it. It would be very helpful if someone can point me to the working
> example of a gadget snap with access to serial interface or any end
> to end gadget snap example and its build steps.

note that all our gadgets offer a console on serial by default, if you
drive some external device via serial you might want to drop this
console tty option. 

all our official gadgets are under ..
namely the pi2-gadget, pi3-gadget, pc-gadget and dragonboard-gadget
sub-trees if you want to take a look ...

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