pinephone manjaro kde plasma error dev/ttyUSB2 IS BUSY

[Pkos767676]

when i run this command sudo echo -ne "AT+QFASTBOOT\r" > /dev/ttyUSB2 i get an error that /dev/ttyUSB2 permision denied i run chmod -R 777 /dev/ttyUSB2 AND THEDN I RUN THEprevious command i get an error that /dev/ttyUSB2 IS BUSY

[xnopasaranx]

I don't think it is smart to change permissions on a serial device (/dev/ttyUSB2), you shouldn't have to do that. The instructions tell you to run the flashall script in a root terminal, not by using sudo. I am not sure what you are trying to do exactly (ADSP?) but try entering a root shell with "sudo su" before.

[Biktorgj]

If you wrote the command exactly as you put itit's impossible for it to work.
You're running "echo" as root but the end of the pipe as a normal user

Try running this (exactly):
sudo 'echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2'

The other option would be to just run the echo command directly as root instead of calling it via sudo.

[Pkos767676]

I don't think it is smart to change permissions on a serial device (/dev/ttyUSB2), you shouldn't have to do that. The instructions tell you to run the flashall script in a root terminal, not by using sudo. I am not sure what you are trying to do exactly (ADSP?) but try entering a root shell with "sudo su" before.

The problem is when I make one call with the pinephone after the call it freezes and I try to find a solution I try to install a driver for the modem in order to find solution

[calbasi]

If you wrote the command exactly as you put itit's impossible for it to work. You're running "echo" as root but the end of the pipe as a normal user

Try running this (exactly): sudo 'echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2'

The other option would be to just run the echo command directly as root instead of calling it via sudo.

This command is not running for me (PP+Mobian):

sudo: echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2: no s'ha trobat l'ordre

Where "no s'ha trobat l'ordre, in Catalan, means: the command has not been found...

By the way, the old command (should it be updated with the new one?) is here:

https://github.com/the-modem-distro/pinephone_modem_sdk/blob/honister/docs/SETTINGS.md

[airtower-luna]

sudo 'echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2' isn't working because sudo ends up interpreting the whole string as the executable to call (which obviously doesn't exist). You'd need to run the string through a shell to run the redirection as root:

sudo sh -c 'echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2'

[Biktorgj]

If you wrote the command exactly as you put itit's impossible for it to work. You're running "echo" as root but the end of the pipe as a normal user
Try running this (exactly): sudo 'echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2'
The other option would be to just run the echo command directly as root instead of calling it via sudo.

This command is not running for me (PP+Mobian):

sudo: echo -ne "AT+QFASTBOOT\r\n" > /dev/ttyUSB2: no s'ha trobat l'ordre

Where "no s'ha trobat l'ordre, in Catalan, means: the command has not been found...

By the way, the old command (should it be updated with the new one?) is here:

https://github.com/the-modem-distro/pinephone_modem_sdk/blob/honister/docs/SETTINGS.md

AT+CAT can be used to enable the Custom Alerting Tone, not to enter fastboot :)

In any case, half of the document should be removed once all distros update eg25-manager, since it should now take care of setting everything up for you.

If you open your udev file and it looks sort of like this you probably don't need to touch it anymore

[calbasi]

AT+CAT can be used to enable the Custom Alerting Tone, not to enter fastboot :)

But this is exactly the command you put in your comment, here: #135 (comment)

[calbasi]

In any case, half of the document should be removed once all distros update eg25-manager, since it should now take care of setting everything up for you.

If you open your udev file and it looks sort of like this you probably don't need to touch it anymore

Thanks! It seems the new version for eg25-manager is merged at 0.4.4, a week ago. But Mobian is still using, nowadays, version 0.4.3-1

But I suppose version 0.4.4 can take much to be in Mobian, so I just wait until there.

Maybe could be interesting edit the Settings doc, as you suggested, to remove the obsolete part: https://github.com/the-modem-distro/pinephone_modem_sdk/blob/honister/docs/SETTINGS.md

[Zapeth]

If you open your udev file and it looks sort of like this you probably don't need to touch it anymore

Out of curiosity, is this a hardware quirk that requires the power setting to be permanently enabled, or just a temporary workaround until the root cause has been determined/fixed? Considering the battery capacity isn't that great to begin with, I'd like to avoid changes like these unless they are absolutely required.

[bfra2373]

@calbasi Did you look if you are part of the usb group? I had some issue with that because manjaro's user are not part of the USB group by default hence not been able to sudo ttyUSB

[calbasi]

I don't think so. In fact, there is no usb group on Mobian (at least at /etc/group)

[Silverdev2482]

I have tried to do sudo echo > file, the way that actually works is echo "" | sudo tee file.