/dev/ttyACM0 vanished

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

/dev/ttyACM0 vanished

Warren Burstein
I've got a phone (--identify says it's a Nokia X3-02, V 05.65), it's connected to a virtual machine running CentOS 6.8.  I'm nowhere near it and I don't have details of the virtual machine but I know they need to tell the VM configuration manager to make the USB port available to the VM running CentOS.  It's been sending hundreds of texts a day for about a year (we're not spamming, a;l texts go to our own employees)

Last night it started generating error messages that it couldn't open /dev/ttyACM0

Initializing AT capable mobile phone ...
Serial device: opening device /dev/ttyACM0
Gnokii serial_open: open: No such file or directory
Couldn't open ATBUS device: No such file or directory

I checked, and the device file was missing.  I asked people at the place where this is located to take a look, the phone was on and connected and the VM manager showed it (and identified it as a Nokia), but since they couldn't find anything wrong they replaced the USB cable and rebooted (I'm not sure if they rebooted the real machine or the virtual one) and it's OK now.

Has anyone else run into a device vanishing while a phone is plugged in and on?

PS I'd set something up to urgently notify the sysadmins about a recurrence of this, but that's what this phone is used for ....

_______________________________________________
gnokii-users mailing list
[hidden email]
https://lists.nongnu.org/mailman/listinfo/gnokii-users
Reply | Threaded
Open this post in threaded view
|

Re: /dev/ttyACM0 vanished

Athanasios Silis
I am a bit confused about where you are, where the pc with the phone and the vm is and where there sysadmins are.
I will also say that you make have better chance asking about this in the user forums of your VM (vmware? virtualbox? other?) . The fact is that if the CentOs does not show  a /dev/ttyACM0 then its probably because one is not attached -virtually- to this VM. It is definitely NOT a gnokii error.

Having said that, I am using virtualbox for my VMs and in order for the USB device to be forwarded to the VM clients , one must -through the VM configuration manager - tell that they want the specific usb device should be forwarded to a specific client. Yo u can even automate that so that everytime the VM restarts the specific usb device will always be forwarded. If you're missing the /dev/ttyACM0 I strongly suggest you focus your investigation on the usb settings of the VM config manager. In Virtualbox : select client VM -> right click and goto settings -> select tab "usb" on the left panel -> add device (small icon with a blue plus sign).


On Wed, Jul 27, 2016 at 2:46 PM, Warren Burstein <[hidden email]> wrote:
I've got a phone (--identify says it's a Nokia X3-02, V 05.65), it's connected to a virtual machine running CentOS 6.8.  I'm nowhere near it and I don't have details of the virtual machine but I know they need to tell the VM configuration manager to make the USB port available to the VM running CentOS.  It's been sending hundreds of texts a day for about a year (we're not spamming, a;l texts go to our own employees)

Last night it started generating error messages that it couldn't open /dev/ttyACM0

Initializing AT capable mobile phone ...
Serial device: opening device /dev/ttyACM0
Gnokii serial_open: open: No such file or directory
Couldn't open ATBUS device: No such file or directory

I checked, and the device file was missing.  I asked people at the place where this is located to take a look, the phone was on and connected and the VM manager showed it (and identified it as a Nokia), but since they couldn't find anything wrong they replaced the USB cable and rebooted (I'm not sure if they rebooted the real machine or the virtual one) and it's OK now.

Has anyone else run into a device vanishing while a phone is plugged in and on?

PS I'd set something up to urgently notify the sysadmins about a recurrence of this, but that's what this phone is used for ....

_______________________________________________
gnokii-users mailing list
[hidden email]
https://lists.nongnu.org/mailman/listinfo/gnokii-users



_______________________________________________
gnokii-users mailing list
[hidden email]
https://lists.nongnu.org/mailman/listinfo/gnokii-users