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DancesWithWords
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Joined: 29 Jun 2002
Posts: 347
Location: ottawa, canada
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 Posted: Sat Mar 03, 2018 5:59 pm Post subject: [SOLVED] ttyACM0 & Arduino & Arduino Create |
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Why do I have to do: chmod 666 /dev/ttyACM0 in order for me to get access to my Arduino everytime I plug it in to USB?
I found this:
SUBSYSTEMS="usb", ATTRS{product}== "Arduino Uno", GROUP="users", MODE="0666"
SUBSYSTEMS="usb", ATTRS{product}== "FT232R USB UART", GROUP="users", MODE="0666"
Which I put in: /etc/udev/rules.d/50-embedded_devices.rules
But that had no effect.
So how do I fix it so I so I don't have to chmod 666 /dev/ttyACM0 everytime I plug in the Arduino board to USB?
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DWW
Last edited by DancesWithWords on Sat Mar 03, 2018 9:17 pm; edited 1 time in total |
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DancesWithWords
Guru
Joined: 29 Jun 2002
Posts: 347
Location: ottawa, canada
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| Posted: Sat Mar 03, 2018 9:16 pm Post subject: [SOLVED] Re: ttyACM0 & Arduino & Arduino Create |
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| DancesWithWords wrote: | Why do I have to do: chmod 666 /dev/ttyACM0 in order for me to get access to my Arduino everytime I plug it in to USB?
I found this:
SUBSYSTEMS="usb", ATTRS{product}== "Arduino Uno", GROUP="users", MODE="0666"
SUBSYSTEMS="usb", ATTRS{product}== "FT232R USB UART", GROUP="users", MODE="0666"
Which I put in: /etc/udev/rules.d/50-embedded_devices.rules
But that had no effect.
So how do I fix it so I so I don't have to chmod 666 /dev/ttyACM0 everytime I plug in the Arduino board to USB?
=====
DWW |
Solved this by doing...
udevadm info -a -p $(udevadm info -q path -n /dev/ttyACM0)
And changing the above to:
SUBSYSTEMS=="usb", ATTRS{manufacturer}=="Arduino (www.arduino.cc)", ATTRS{idProduct}=="0043", ATTRS{idVendor}=="2341", GROUP="users", MODE="0666"
SUBSYSTEMS=="usb", ATTRS{product}== "FT232R USB UART", GROUP="users", MODE="0666" |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 23071
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| Posted: Sat Mar 03, 2018 11:30 pm Post subject: Re: [SOLVED] Re: ttyACM0 & Arduino & Arduino Create |
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| DancesWithWords wrote: | | udevadm info -a -p $(udevadm info -q path -n /dev/ttyACM0) |
This could be simplified. info -q path prints out a valid argument for info -p, but you could instead use just udevadm info -a -n /dev/ttyACM0 to get the same result. |
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DancesWithWords
Guru
Joined: 29 Jun 2002
Posts: 347
Location: ottawa, canada
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| Posted: Sun Mar 04, 2018 12:10 am Post subject: Re: [SOLVED] Re: ttyACM0 & Arduino & Arduino Create |
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| Hu wrote: | | DancesWithWords wrote: | | udevadm info -a -p $(udevadm info -q path -n /dev/ttyACM0) |
This could be simplified. info -q path prints out a valid argument for info -p, but you could instead use just udevadm info -a -n /dev/ttyACM0 to get the same result. |
Thanks for this addition, hopefully it will help someone else.
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DWW |
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