Access to ttyUSB* from snap (Ubuntu Core)

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Our app is running as a snap on a device and needs serial-port access to the ttyUSB device.

Running a snap list shows we have a number of snaps (none of which I think has a USB Slot)
bash $ snap list Name Version Rev Tracking Developer Notes alsa-utils 1.1.2-5 68 stable canonical - bluez 5.44-3 129 stable canonical - caracalla 16.04-1.35 49 stable canonical gadget caracalla-kernel 4.4.0-119.143-1 81 stable canonical kernel ccm-wda 3.00.0.39132 14 - dell-inc - classic 16.04 19 edge canonical devmode core 16-2.32.3 4407 stable canonical core dcc 3.2.1.283 3 - dell-inc - dcm 9.2.1.52 7 - dell-inc - microservicebus-node 1.14 19 beta wmmihaa - modem-manager 1.6.12-2 131 stable canonical - network-manager 1.2.2-15 263 stable canonical - ntpcontrol 0.1 13 edge ogra - snappy-debug 0.31.7-snapd2.28.5 219 stable canonical - snapweb 0.26-11 319 stable canonical - test 1 x1 - - devmode tpm2 1.0-5 42 stable canonical - udisks2 2.6.4-2 100 stable canonical - uefi-fw-tools 1.5.2-0.7.2+git 10 stable canonical - ufw 0.36pre-16.10 14 stable canonical - wifi-ap 18 208 stable canonical - wpa-supplicant 2.4.3 41 stable canonical -

Is there a USB gadget snap out there?

asked Apr 23 at 18:19

wmmhihaa

162

Try running snap find tty. Using list shows you what is installed.
â€“Â Terrance
Apr 23 at 18:53

``` snap find tty Name Version Developer Notes Summary ttimer 0.0.1 jes - plain Timer (a tea-timer for systems w/o java) miniterm-joc 2 jocave - pySerial miniterm in a snap tio 1.30 lundmar - A simple TTY terminal I/O application linux-cl v0.1.0 rgrannell1 - change linux tty's colour scheme ```
â€“Â wmmhihaa
Apr 23 at 19:32

That's all the tty applications that are available at this time to snap.
â€“Â Terrance
Apr 23 at 20:27

add a commentÂ |Â

up vote
2
down vote

favorite

Our app is running as a snap on a device and needs serial-port access to the ttyUSB device.

Is there a USB gadget snap out there?

asked Apr 23 at 18:19

wmmhihaa

162

Try running snap find tty. Using list shows you what is installed.
â€“Â Terrance
Apr 23 at 18:53

``` snap find tty Name Version Developer Notes Summary ttimer 0.0.1 jes - plain Timer (a tea-timer for systems w/o java) miniterm-joc 2 jocave - pySerial miniterm in a snap tio 1.30 lundmar - A simple TTY terminal I/O application linux-cl v0.1.0 rgrannell1 - change linux tty's colour scheme ```
â€“Â wmmhihaa
Apr 23 at 19:32

That's all the tty applications that are available at this time to snap.
â€“Â Terrance
Apr 23 at 20:27

add a commentÂ |Â

up vote
2
down vote

favorite

Our app is running as a snap on a device and needs serial-port access to the ttyUSB device.

Is there a USB gadget snap out there?

asked Apr 23 at 18:19

wmmhihaa

162

Our app is running as a snap on a device and needs serial-port access to the ttyUSB device.

Is there a USB gadget snap out there?

asked Apr 23 at 18:19

wmmhihaa

162

asked Apr 23 at 18:19

wmmhihaa

162

asked Apr 23 at 18:19

wmmhihaa

162

asked Apr 23 at 18:19

wmmhihaa

162

Try running snap find tty. Using list shows you what is installed.
â€“Â Terrance
Apr 23 at 18:53

``` snap find tty Name Version Developer Notes Summary ttimer 0.0.1 jes - plain Timer (a tea-timer for systems w/o java) miniterm-joc 2 jocave - pySerial miniterm in a snap tio 1.30 lundmar - A simple TTY terminal I/O application linux-cl v0.1.0 rgrannell1 - change linux tty's colour scheme ```
â€“Â wmmhihaa
Apr 23 at 19:32

That's all the tty applications that are available at this time to snap.
â€“Â Terrance
Apr 23 at 20:27

add a commentÂ |Â

Try running snap find tty. Using list shows you what is installed.
â€“Â Terrance
Apr 23 at 18:53

``` snap find tty Name Version Developer Notes Summary ttimer 0.0.1 jes - plain Timer (a tea-timer for systems w/o java) miniterm-joc 2 jocave - pySerial miniterm in a snap tio 1.30 lundmar - A simple TTY terminal I/O application linux-cl v0.1.0 rgrannell1 - change linux tty's colour scheme ```
â€“Â wmmhihaa
Apr 23 at 19:32

That's all the tty applications that are available at this time to snap.
â€“Â Terrance
Apr 23 at 20:27

Try running snap find tty. Using list shows you what is installed.
â€“Â Terrance
Apr 23 at 18:53

``` snap find tty Name Version Developer Notes Summary ttimer 0.0.1 jes - plain Timer (a tea-timer for systems w/o java) miniterm-joc 2 jocave - pySerial miniterm in a snap tio 1.30 lundmar - A simple TTY terminal I/O application linux-cl v0.1.0 rgrannell1 - change linux tty's colour scheme ```
â€“Â wmmhihaa
Apr 23 at 19:32

That's all the tty applications that are available at this time to snap.
â€“Â Terrance
Apr 23 at 20:27

add a commentÂ |Â

1 Answer
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You can gain access to devices by defining slots: try this article might be useful.

Other than that you need to install your snap using the --devmode flag.

answered Apr 26 at 13:23

jalim

195

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up vote
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You can gain access to devices by defining slots: try this article might be useful.

Other than that you need to install your snap using the --devmode flag.

answered Apr 26 at 13:23

jalim

195

add a commentÂ |Â

up vote
0
down vote

You can gain access to devices by defining slots: try this article might be useful.

Other than that you need to install your snap using the --devmode flag.

answered Apr 26 at 13:23

jalim

195

add a commentÂ |Â

up vote
0
down vote

You can gain access to devices by defining slots: try this article might be useful.

Other than that you need to install your snap using the --devmode flag.

answered Apr 26 at 13:23

jalim

195

You can gain access to devices by defining slots: try this article might be useful.

Other than that you need to install your snap using the --devmode flag.

answered Apr 26 at 13:23

jalim

195

answered Apr 26 at 13:23

jalim

195

answered Apr 26 at 13:23

jalim

195

answered Apr 26 at 13:23

jalim

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